• 0-9
  • a
  • b
  • c
  • d
  • e
  • f
  • g
  • h
  • i
  • j
  • k
  • l
  • m
  • n
  • o
  • p
  • q
  • r
  • s
  • t
  • u
  • v
  • w
  • x
  • y
  • z
  • HIP 13044b (extrasolar planet)

    HIP 13044b, first extrasolar planet that was found orbiting a star that originated outside the Milky Way Galaxy. HIP 13044b has a mass at least 1.25 times that of Jupiter and orbits its host star, HIP 13044, every 16.2 days at a distance of 17.4 million km (10.8 million miles). It was discovered in

  • hip dysplasia (canine disease)

    Hip dysplasia, in dogs, abnormal development of the hip joint on one or both sides of the body, occurring primarily in medium and large breeds. Its clinical signs include decreased ability to endure exercise, lameness in the hind limbs, reluctance to climb stairs, and pain coincident with hip

  • hip fracture (pathology)

    Hip fracture, in pathology, a break in the proximal (upper) end of the femur. Hip fracture can occur at any age. Common causes include severe impact (e.g., a car accident), falls, and weak bones or bone loss (osteoporosis). The risk of hip fracture from falls and bone loss increases with age.

  • hip girdle (anatomy)

    Pelvis, in human anatomy, basin-shaped complex of bones that connects the trunk and the legs, supports and balances the trunk, and contains and supports the intestines, the urinary bladder, and the internal sex organs. The pelvis consists of paired hipbones, connected in front at the pubic

  • hip joint (anatomy)

    Hip, in anatomy, the joint between the thighbone (femur) and the pelvis; also the area adjacent to this joint. The hip joint is a ball-and-socket joint; the round head of the femur rests in a cavity (the acetabulum) that allows free rotation of the limb. Amphibians and reptiles have relatively weak

  • hip replacement (surgical procedure)

    osteoarthritis: Surgical procedures such as hip or knee replacement or joint debridement (the removal of unhealthy tissue) may be necessary to relieve more severe pain and improve joint function. Injections of a joint lubricant consisting of hyaluronic acid, a substance normally found in synovial fluid, can help relieve pain and…

  • hip roof (architecture)

    Hip roof, roof that slopes upward from all sides of a structure, having no vertical ends. The hip is the external angle at which adjacent sloping sides of a roof meet. The degree of such an angle is referred to as the hip bevel. The triangular sloping surface formed by hips that meet at a roof’s

  • hip-hop (music and cultural movement)

    Hip-hop, cultural movement that attained widespread popularity in the 1980s and ’90s; also, the backing music for rap, the musical style incorporating rhythmic and/or rhyming speech that became the movement’s most lasting and influential art form. Although widely considered a synonym for rap music,

  • Hipernik (metal alloy)

    Permalloy: Hipernik (trademark of the Westinghouse Electric Company) is an alloy of 50 percent nickel useful for high-power transformers. Heating Permalloy containing 5 percent molybdenum in pure hydrogen yields Supermalloy, with even higher permeability.

  • Hippa talpoida (crustacean)

    Mole crab, (Emerita, or Hippa, talpoida), crab of the Atlantic beaches from New England to Mexico. It is so named from its digging mole-fashion in sand. The shell is about 3.75 centimetres (1.5 inches) long, somewhat egg-shaped and yellowish white with purplish markings. It lives on beaches in the

  • Hipparchikos (work by Xenophon)

    Xenophon: Other writings: …horse ownership and riding, and Cavalry Commander is a somewhat unsystematic (but serious) discussion of how to improve the Athenian cavalry corps. Also Athenocentric is Ways and Means, a plan to alleviate the city’s financial problems (and remove excuses for aggressive imperialism) by paying citizens a dole from taxes on…

  • Hipparchos (Greek astronomer)

    Hipparchus, Greek astronomer and mathematician who made fundamental contributions to the advancement of astronomy as a mathematical science and to the foundations of trigonometry. Although he is commonly ranked among the greatest scientists of antiquity, very little is known about his life, and

  • Hipparchus (ruler of Athens)

    Harmodius and Aristogeiton: …both Hippias and his brother Hipparchus during the armed procession at the Panathenaic festival (514). The plot miscarried. They succeeded in killing only Hipparchus. Harmodius was slain on the spot, and Aristogeiton was captured and died under torture. The tyranny of Hippias became more ruthless and continued for four more…

  • Hipparchus (Greek astronomer)

    Hipparchus, Greek astronomer and mathematician who made fundamental contributions to the advancement of astronomy as a mathematical science and to the foundations of trigonometry. Although he is commonly ranked among the greatest scientists of antiquity, very little is known about his life, and

  • Hipparchus of Bithynia (Greek astronomer)

    Hipparchus, Greek astronomer and mathematician who made fundamental contributions to the advancement of astronomy as a mathematical science and to the foundations of trigonometry. Although he is commonly ranked among the greatest scientists of antiquity, very little is known about his life, and

  • Hipparcos (artificial satellite)

    Hipparcos, Earth-orbiting satellite launched by the European Space Agency in 1989 that over the next four years measured the distances to more than 100,000 stars by direct triangulation using observations of parallax from either side of Earth’s orbit around the Sun. It was named after the ancient

  • Hippasus of Metapontum (Greek philosopher)

    Hippasus of Metapontum, philosopher, early follower of Pythagoras, coupled by Aristotle with Heraclitus in identifying fire as the first element in the universe. Some traditions say that he was drowned after revealing a mathematical secret of the Pythagorean

  • Hippeastrum (plant genus)

    Amaryllidaceae: …(Haemanthus), Cornish lily (Nerine), and Hippeastrum; the hippeastrums, grown for their large, showy flowers, are commonly known as amaryllis. An ornamental Eurasian plant known as winter daffodil (Sternbergia lutea) is often cultivated in borders or rock gardens. Natal lily, or Kaffir lily (Clivia miniata), a South African perennial, is cultivated…

  • hipped roof (architecture)

    Hip roof, roof that slopes upward from all sides of a structure, having no vertical ends. The hip is the external angle at which adjacent sloping sides of a roof meet. The degree of such an angle is referred to as the hip bevel. The triangular sloping surface formed by hips that meet at a roof’s

  • Hippeis (play by Aristophanes)

    Aristophanes: Knights: This play shows how little Aristophanes was affected by the prosecution he had incurred for Babylonians. Knights (424 bce; Greek Hippeis) consists of a violent attack on the same demagogue, Cleon, who is depicted as the favourite slave of the stupid and irascible Demos…

  • Hippel, Theodor Gottlieb von (German writer)

    Theodor Gottlieb von Hippel, German writer of the late Enlightenment and a disciple of the philosopher Immanuel Kant. Although he was a minor writer of his time, his works enjoyed an unusually long-lasting popularity and can now be seen to have foreshadowed the novels of Jean Paul (Johann Paul

  • Hipper, Franz von (German admiral)

    David Beatty, 1st Earl Beatty: …German squadron under Admiral von Hipper in its third attempt on the English coastal towns. In a running fight, the rear German battle cruiser “Blücher” was sunk by British gunfire. This action was known as the Battle of the Dogger Bank.

  • Hippias (tyrant of Athens)

    Hippias, tyrant of Athens from 528/527 to 510 bc. He was a patron of poets and craftsmen, and under his rule Athens prospered. After the assassination of his brother Hipparchus (514), however, Hippias was driven to repressive measures. An attempt by nobles in exile to force their way back failed,

  • Hippias Major (work by Plato)

    Plato: Varia: The Hippias Major takes up the question “What is the beautiful (the fine)?” Widely agreed to be spurious are Axiochus, Definitions, Demodocus, Epinomis, Eryxias, Halcyon, Hipparchus, Minos, On Justice, On Virtue, Rival Lovers, Second Alcibiades, Sisyphus, and Theages.

  • Hippias Minor (work by Plato)

    Plato: Early dialogues: In the Hippias Minor, discussion of Homer by a visiting Sophist leads to an examination by Socrates, which the Sophist fails, on such questions as whether a just person who does wrong on purpose is better than other wrongdoers. The Ion considers professional reciters of poetry and…

  • Hippias of Elis (Greek philosopher)

    Hippias Of Elis, Sophist philosopher who contributed significantly to mathematics by discovering the quadratrix, a special curve he may have used to trisect an angle. A man of great versatility, with an assurance characteristic of the later Sophists, Hippias lectured on poetry, grammar, history,

  • Hippie (novel by Coelho)

    Paulo Coelho: …successful journalist’s extramarital affair, and Hippie (2018) was inspired by Coehlo’s travels in the 1970s.

  • hippie (subculture)

    Hippie, member, during the 1960s and 1970s, of a countercultural movement that rejected the mores of mainstream American life. The movement originated on college campuses in the United States, although it spread to other countries, including Canada and Britain. The name derived from “hip,” a term

  • Hippius, Zinaida Nikolayevna (Russian poet)

    Zinaida Nikolayevna Gippius, Russian Symbolist poet who wrote in a metaphysical vein. The wife of the poet and novelist Dmitry Merezhkovsky, who was a leader among the Symbolists of the early 1900s, Gippius made her own place in Russian literature. In addition to her poetry, she wrote plays,

  • Hippo (Greek philosopher)

    Hippon, philosopher who revived the belief of the 6th-century philosopher Thales that the world originated from water or moisture. He held that fire first originated from water and that these two, operating as contrary forces, produced the physical cosmos. But he was more especially concerned with

  • hippo (mammal species)

    Hippopotamus, (Hippopotamus amphibius), amphibious African ungulate mammal. Often considered to be the second largest land animal (after the elephant), the hippopotamus is comparable in size and weight to the white rhinoceros (Ceratotherium simum) and the Indian rhinoceros (Rhinoceros unicornis).

  • Hippo (ancient port, Algeria)

    Hippo, ancient port on the coast of North Africa, located near the modern town of Annaba (formerly Bône) in Algeria. Hippo was probably first settled by Carthaginians in the 4th century bce. It later became the home of Numidian rulers. Under Roman control it was first made a municipium (a community

  • Hippo Diarrhytus (port, Bizerte, Tunisia)

    Hippo Diarrhytus, ancient port on the coast of North Africa, now occupied by the city of Bizerte in Tunisia. It was settled at least as early as 350 bce and achieved particular prominence during Roman and later

  • Hippo Regius (ancient port, Algeria)

    Hippo, ancient port on the coast of North Africa, located near the modern town of Annaba (formerly Bône) in Algeria. Hippo was probably first settled by Carthaginians in the 4th century bce. It later became the home of Numidian rulers. Under Roman control it was first made a municipium (a community

  • Hippo Zarytus (port, Bizerte, Tunisia)

    Hippo Diarrhytus, ancient port on the coast of North Africa, now occupied by the city of Bizerte in Tunisia. It was settled at least as early as 350 bce and achieved particular prominence during Roman and later

  • Hippoboscidae (insect)

    Louse fly, any insect of the parasitic family Hippoboscidae (order Diptera) characterized by piercing mouthparts used to suck blood from warm-blooded animals. Genera occur in both winged and wingless forms. The winged louse flies, parasitic on birds, are usually dark brown in colour, flat in shape,

  • Hippocamp (moon of Neptune)

    Neptune: Moons: In 2013 a tiny moon, Hippocamp, about 17 km (11 miles) in radius, was discovered in a Hubble Space Telescope image. Its orbit was tracked in archival images as far back as 2004. It orbits between Larissa and Proteus, two moons discovered by Voyager. Properties of the known Neptunian moons…

  • hippocampal sclerosis (disease)

    hippocampus: Hippocampal dysfunction: …seizures, which can lead to hippocampal sclerosis (a pathological loss of hippocampal cells).

  • Hippocampus (fish)

    Sea horse, (genus Hippocampus), any of about 36 species of marine fishes allied to pipefishes in the family Syngnathidae (order Gasterosteiformes). Sea horses are found in shallow coastal waters in latitudes from about 52° N to 45° S. Their habitats include coral reefs, mangroves, sea grass beds,

  • hippocampus (brain)

    Hippocampus, region of the brain that is associated primarily with memory. The name hippocampus is derived from the Greek hippokampus (hippos, meaning “horse,” and kampos, meaning “sea monster”), since the structure’s shape resembles that of a sea horse. The hippocampus, which is located in the

  • Hippocampus as a Cognitive Map, The (work by O’Keefe and Nadel)

    John O'Keefe: …and colleague Lynn Nadel published The Hippocampus as a Cognitive Map, describing in detail a theory that placed the cognitive map—the existence of which was first proposed in 1948 by American psychologist Edward C. Tolman—specifically in the hippocampus. The theory met with skepticism but later gained support through key discoveries…

  • Hippocampus ingens (fish)

    sea horse: …habitats, some species—such as the Pacific sea horse (H. ingens)—face extinction.

  • Hippocastanaceae (plant family)

    Sapindales: Sapindaceae: Many members of the order are important economically, particularly for their timber or fruits. A few tropical species of the family Sapindaceae produce useful wood for construction, furniture, or fuel, but many are better known for their fruits. Blighia sapida (akee) from West Africa,…

  • Hippocrates (Greek physician)

    Hippocrates, ancient Greek physician who lived during Greece’s Classical period and is traditionally regarded as the father of medicine. It is difficult to isolate the facts of Hippocrates’ life from the later tales told about him or to assess his medicine accurately in the face of centuries of

  • Hippocrates of Chios (Greek mathematician)

    Hippocrates of Chios, Greek geometer who compiled the first known work on the elements of geometry nearly a century before Euclid. Although the work is no longer extant, Euclid may have used it as a model for his Elements. According to tradition, Hippocrates was a merchant whose goods had been

  • Hippocratic Collection (works attributed to Hippocrates)

    Hippocrates: Influence: …and direct writings of the Hippocratic Collection read well as sample empirical texts that eschewed dogma. By the late 19th century, Galen was irrelevant to medical practice, and general knowledge of Hippocratic medical writings was beginning to fade. However, today Hippocrates still continues to represent the humane, ethical aspects of…

  • Hippocratic oath (ethical code)

    Hippocratic oath, ethical code attributed to the ancient Greek physician Hippocrates, adopted as a guide to conduct by the medical profession throughout the ages and still used in the graduation ceremonies of many medical schools. Although little is known of the life of Hippocrates—or, indeed, if

  • Hippocratic wreath (baldness)

    baldness: …of the head (the “Hippocratic wreath”).

  • Hippodamia (Greek mythology)

    Pelops: …strove for the hand of Hippodamia, daughter of King Oenomaus of Pisa in Elis. Oenomaus, who had an incestuous love for his daughter, had previously killed 13 suitors. He challenged Pelops to a chariot chase, with Hippodamia the prize of victory and death the price of defeat. Though Oenomaus’ team…

  • Hippodamia convergens (insect)

    migration: Insects: One coccinellid, the convergent ladybug (Hippodamia convergens), lives in valley regions of California, where the eggs hatch in March or April and develop into adults one month later. In early summer they migrate to the mountains, particularly to the Sierra Nevada, where they may lay eggs if food…

  • Hippodamus of Miletus (Greek architect)

    Miletus: …invented in this period by Hippodamus of Miletus. In 412 the city sided with Sparta against Athens; before 350 Mausolus of Caria ruled it, and it fell to Alexander in 334 after a siege. Hellenistic rulers who competed for influence at Miletus included the Seleucid Antiochus IV Epiphanes and Eumenes…

  • hippodrome (architecture)

    Hippodrome, ancient Greek stadium designed for horse racing and especially chariot racing. Its Roman counterpart was called a circus and is best represented by the Circus Maximus (q.v.). The typical hippodrome was dug into a hillside and the excavated material used to construct an embankment for

  • Hippoglossus hippoglossus (fish)

    halibut: The Atlantic halibut (H. hippoglossus) is found on both sides of the North Atlantic. The largest flatfish, it may reach a length of about 2 metres (7 feet) and a weight of 325 kilograms (720 pounds). It is brown, blackish, or deep green on the eyed…

  • hippogriff (legendary animal)

    Hippogriff, a legendary animal that has the foreparts of a winged griffin and the body and hindquarters of a horse. The creature was invented by Ludovico Ariosto in his Orlando furioso and was based on a proverbial phrase about crossing a griffin with a horse that was used to signify an

  • Hippolyta (fictional character)

    A Midsummer Night's Dream: …duke of Athens, has conquered Hippolyta, the Amazon queen, and is about to wed her. Meanwhile, two lovers, Hermia and Lysander, seek refuge in the forest near Athens when Hermia’s father demands that she marry Demetrius. Hoping to win Demetrius’s favour, Helena tells him their whereabouts and follows him to…

  • Hippolyte (Greek mythology)

    Heracles: …taking of the girdle of Hippolyte, queen of the Amazons; (10) the seizing of the cattle of the three-bodied giant Geryon, who ruled the island Erytheia (meaning red) in the far west; (11) the bringing back of the golden apples kept at the world’s end by the Hesperides; and (12)…

  • Hippolyte et Aricie (opera by Rameau)

    Jean-Philippe Rameau: …in many ways finest opera, Hippolyte et Aricie. It was first performed in the spring of 1733, at La Pouplinière’s house, then, in the autumn, at the Opéra, and in 1734 it was performed at court. André Campra, perhaps the most celebrated French composer of the time, remarked to the…

  • Hippolytos (play by Euripides)

    Hippolytus, play by Euripides, performed in 428 bce. The action concerns the revenge of Aphrodite, the goddess of love and sexual desire, on Hippolytus, a hunter and sportsman who is repelled by sexual passion and who is instead devoted to the virgin huntress

  • Hippolytus (Greek mythology)

    Hippolytus, minor divinity in Greek religion. At Athens he was associated with Aphrodite, the goddess of love; at Troezen, girls just before marrying dedicated to him a lock of their hair. To the Greeks his name might suggest that he was destroyed by horses. In Euripides’ tragedy Hippolytus, he was

  • Hippolytus (play by Euripides)

    Hippolytus, play by Euripides, performed in 428 bce. The action concerns the revenge of Aphrodite, the goddess of love and sexual desire, on Hippolytus, a hunter and sportsman who is repelled by sexual passion and who is instead devoted to the virgin huntress

  • Hippolytus of Rome, Saint (antipope)

    Saint Hippolytus of Rome, ; Western feast day August 13, Eastern feast day January 30), Christian martyr who was also the first antipope (217/218–235). Hippolytus was a leader of the Roman church during the pontificate (c. 199–217) of St. Zephyrinus, whom he attacked as being a modalist (one who

  • Hippolytus, Canons of Saint (Christian literature)

    Canons of Saint Hippolytus, a collection of 38 canons (church regulations) preserved in an Arabic translation. The original text was Greek and written in Egypt; the Arabic version may rest on a Coptic translation. These canons are neither the authentic work of St. Hippolytus nor the oldest church

  • Hippomane mancinella (plant)

    Manchineel, (Hippomane mancinella), tree of the genus Hippomane, of the spurge family (Euphorbiaceae), that is famous for its poisonous fruits. The manchineel is native mostly to sandy beaches of the Caribbean and Gulf of Mexico. Its attractive, single or paired yellow-to-reddish, sweet-scented, a

  • Hippomenes (Greek mythology)

    Atalanta: In one race Hippomenes (or Milanion) was given three of the golden apples of the Hesperides by the goddess Aphrodite; when he dropped them, Atalanta stopped to pick them up and so lost the race. Their son was Parthenopaeus, who later was one of the Seven who fought…

  • Hippomorpha (mammal suborder)

    perissodactyl: Annotated classification: Suborder Hippomorpha Superfamily Equoidea Dentition complete, upper molars with 6 tubercles, the 2 external ones united to form an ectoloph, median and internal tubercles generally fused into a single loph. Tendency to molarization of premolars and reduction of lateral digits. †Family Palaeotheriidae (paleotheres or “native horses”)…

  • Hippon (Greek philosopher)

    Hippon, philosopher who revived the belief of the 6th-century philosopher Thales that the world originated from water or moisture. He held that fire first originated from water and that these two, operating as contrary forces, produced the physical cosmos. But he was more especially concerned with

  • Hipponax (Greek philosopher)

    Hippon, philosopher who revived the belief of the 6th-century philosopher Thales that the world originated from water or moisture. He held that fire first originated from water and that these two, operating as contrary forces, produced the physical cosmos. But he was more especially concerned with

  • Hipponax (Greek poet)

    Ephesus: History: …(mid-7th century bce), the satirist Hipponax, and the famous philosopher Heracleitus, one of the Basilids.

  • Hipponion (Italy)

    Vibo Valentia, town, Calabria regione, southern Italy. It lies near the Gulf of Sant’Eufemia. It originated as the ancient Greek town of Hipponion and was praised in the 1st century bc by the Roman statesman and author Cicero. There is a museum of Greek antiquities, and ruined Greek walls can be

  • Hipponium (Italy)

    Vibo Valentia, town, Calabria regione, southern Italy. It lies near the Gulf of Sant’Eufemia. It originated as the ancient Greek town of Hipponion and was praised in the 1st century bc by the Roman statesman and author Cicero. There is a museum of Greek antiquities, and ruined Greek walls can be

  • Hippophae rhamnoides (shrub and fruit)

    Sea buckthorn, (Hippophae rhamnoides, family Elaeagnaceae), willowlike shrub growing to about 2.5 m (about 8 feet) high with narrow leaves that are silvery on the underside and globose, orange-yellow fruits about 8 mm (13 inch) in diameter. It is common on sand dunes along the eastern and

  • Hippopotamidae (mammal family)

    hippopotamus: Evolution: Hippopotamidae to pigs (family Suidae) and peccaries (family Tayassuidae). These groups diverged from other members of the order Artiodactyla about 45 million years ago, but molecular studies suggest that hippos and cetaceans (whales and dolphins) have an earlier common ancestor and may be more closely

  • hippopotamus (mammal species)

    Hippopotamus, (Hippopotamus amphibius), amphibious African ungulate mammal. Often considered to be the second largest land animal (after the elephant), the hippopotamus is comparable in size and weight to the white rhinoceros (Ceratotherium simum) and the Indian rhinoceros (Rhinoceros unicornis).

  • Hippopotamus amphibius (mammal species)

    Hippopotamus, (Hippopotamus amphibius), amphibious African ungulate mammal. Often considered to be the second largest land animal (after the elephant), the hippopotamus is comparable in size and weight to the white rhinoceros (Ceratotherium simum) and the Indian rhinoceros (Rhinoceros unicornis).

  • Hipposideridae (mammal family)

    Hipposiderinae, subfamily of insect-eating bats, suborder Microchiroptera, family Rhinolophidae, with 9 genera and approximately 66 species. Known as roundleaf bats, hipposiderine bats are characterized by a round nose leaf (fleshy appendage on the muzzle), consisting of an anterior

  • hipposiderine bat (mammal family)

    Hipposiderinae, subfamily of insect-eating bats, suborder Microchiroptera, family Rhinolophidae, with 9 genera and approximately 66 species. Known as roundleaf bats, hipposiderine bats are characterized by a round nose leaf (fleshy appendage on the muzzle), consisting of an anterior

  • Hippotragini (mammal tribe)

    antelope: Classification: blackbuck) Tribe Hippotragini (horse antelopes, including roan antelopes, sable antelopes, oryxes, and addaxes) Tribe Reduncini (includes reedbucks, kobs, lechwes, and

  • Hippotragus equinus (mammal)

    Roan antelope, (Hippotragus equinus), one of the largest and most formidable African antelopes (family Bovidae) and a member of the tribe Hippotragini, the so-called horse antelopes. The roan is a powerfully built animal with long, sturdy limbs and a thick neck that looks thicker because of an

  • Hippotragus niger (mammal)

    Sable antelope, (Hippotragus niger), one of Africa’s most impressive antelopes and a member of the horse antelope tribe Hippotragini (family Bovidae), so-called because of their compact, powerful build, erect mane, thick necks, and sturdy build. Sable bulls, with their glossy black (sable) coats

  • Hippotragus niger niger (mammal subspecies)

    sable antelope: …Zambezi River, females of the H. niger niger (“black black”) subspecies also turn very dark. The sable is a large antelope, standing 117–140 cm (46–55 inches) tall. Bulls weigh about 235 kg (517 pounds) and females about 220 kg (480 pounds).

  • hippuric acid (chemical compound)

    carboxylic acid: Aromatic acids: …an amide of glycine called hippuric acid, C6H5CONHCH2COOH. The sodium salt, sodium benzoate, is used as a preservative in many foods.

  • Hippuris (plant)

    Mare’s-tail, the aquatic plant Hippuris vulgaris or either of two other species of its genus, in the plantain family (Plantaginaceae). Mare’s-tail grows from submerged, stout rootstocks along the margins of lakes and ponds in temperate regions throughout the world. It resembles the unrelated

  • Hippuris vulgaris (plant)

    mare's-tail: >Hippuris vulgaris or either of two other species of its genus, in the plantain family (Plantaginaceae). Mare’s-tail grows from submerged, stout rootstocks along the margins of lakes and ponds in temperate regions throughout the world. It resembles the unrelated horsetail (Equisetum species) in having whorls…

  • hippus (physiology)

    human eye: The pupil: …that, if exaggerated, is called hippus.

  • hippy (subculture)

    Hippie, member, during the 1960s and 1970s, of a countercultural movement that rejected the mores of mainstream American life. The movement originated on college campuses in the United States, although it spread to other countries, including Canada and Britain. The name derived from “hip,” a term

  • Hipta (ancient deity)

    Hebat, in the religions of Asia Minor, a Hurrian goddess, the consort of the weather god Teshub. She was called Queen of Heaven and was assimilated by the Hittites to their national goddess, the sun goddess of Arinna. Teshub and Hebat had cult centres at Kummanni (classical Comana Cappadociae) and

  • Hira (ancient city, Iraq)

    Al-Ḥīrah, (from Syriac ḥirtā, “camp”), English Hira, ancient city located south of al-Kūfah in south-central Iraq; it was prominent in pre-Islāmic Arab history. The town was originally a military encampment, but in the 5th and 6th centuries ad it was the capital of the Lakhmids, who were Arab

  • hira-gana (Japanese script)

    Japanese calligraphy: …new, native script known as hiragana, which was often referred to as “women’s hand,” or onna-de in Japanese. It was used particularly in the writing of Japanese poetry and had an elegant and graceful appearance.

  • hira-niwa (landscaping)

    Japanese garden: Types of gardens: …either tsuki-yama (“artificial hills”) or hira-niwa (“level ground”), each having particular features. Tsuki-yama consists of hills and ponds, and hira-niwa consists of flat ground designed to represent a valley or moor; tsuki-yama may include a portion laid out as hira-niwa. Each type may, furthermore, be treated in any one of…

  • Hirabayashi v. United States (law case)

    Korematsu v. United States: …in an earlier related case, Hirabayashi v. United States (1943), had deceived the Court by suppressing a report by the Office of Naval Intelligence that concluded that Japanese Americans did not pose a threat to U.S. national security.

  • Hirabayashi, Gordon Kiyoshi (American civil disobedience advocate)

    Gordon Kiyoshi Hirabayashi, American civil disobedience advocate (born April 23, 1918, Seattle, Wash.—died Jan. 2, 2012, Edmonton, Alta.), was a senior at the University of Washington when he defied a U.S. government directive that in February 1942 imposed a curfew for Japanese Americans living on

  • Hirado (Japan)

    Hirado, city, northwestern Nagasaki ken (prefecture), Japan. It lies on Hirado Island, off the northwest coast of Kyushu. Although the city is composed of two islands, the town of Hirado on the northern shore of Hirado Island serves as its core. The town was the first Japanese port opened to

  • Hirado ware (Japanese pottery)

    Mikawachi porcelain, Japanese porcelain of the Tokugawa period (1603–1867) from the kilns at Mikawachi on the island of Hirado, Hizen province, now in Nagasaki prefecture. Although the kilns were established by Korean potters in the 17th century, it was not until 1751, when they came under the

  • Hiraga Gennai (Japanese scholar)

    Japan: Western studies: The naturalist Hiraga Gennai, from the Takamatsu domain in Shikoku, rejected the restricted life of the warrior; he became a rōnin and moved to Edo, where he thought and acted freely. As an advocate of the idea that Japan prevent the outflow of gold and silver by…

  • hiragana (Japanese script)

    Japanese calligraphy: …new, native script known as hiragana, which was often referred to as “women’s hand,” or onna-de in Japanese. It was used particularly in the writing of Japanese poetry and had an elegant and graceful appearance.

  • Hiragushi Denchū (Japanese sculptor)

    Hiragushi Denchū, sculptor who worked to preserve traditional Japanese wood-carving methods. Hiragushi set out for Ōsaka at the age of 21 to receive training in wood sculpture from a doll-carving expert, training that greatly influenced his work in later years. He also studied ancient Buddhist

  • Ḥīrah, al- (ancient city, Iraq)

    Al-Ḥīrah, (from Syriac ḥirtā, “camp”), English Hira, ancient city located south of al-Kūfah in south-central Iraq; it was prominent in pre-Islāmic Arab history. The town was originally a military encampment, but in the 5th and 6th centuries ad it was the capital of the Lakhmids, who were Arab

  • Hirakata (Japan)

    Hirakata, city, northeastern Ōsaka fu (urban prefecture), west-central Honshu, Japan. It lies along the Yodo River on low land that rises eastward to the northern portion of the Ikoma Mountains. The city is an important component of the Ōsaka-Kōbe metropolitan area. Hirakata prospered as a post

  • Hirakud Dam (dam, India)

    Odisha: Resources and power: …projects on the subcontinent; the Hirakud Dam and the Machkund hydroelectric project, together with several smaller units, provide flood control, irrigation, and power to the entire lower basin. Thermal plants are a significant secondary source of power.

  • Hiram (king of Tyre)

    Hiram, Phoenician king of Tyre (reigned 969–936 bc), who appears in the Bible as an ally of the Israelite kings David and Solomon. Hiram maintained friendly relations with Israel, supplying Solomon with men and materials for the construction of the Temple at Jerusalem and cooperating with him in

  • Check out Britannica's new site for parents!
    Subscribe Today!