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Gypseous

Resembling or containing gypsum; partaking of the qualities of gypsum.

Gypsoplast

A cast taken in plaster of Paris, or in white lime.

Gypsum

A mineral consisting of the hydrous sulphate of lime (calcium). When calcined, it forms plaster of Paris. Selenite is a transparent, crystalline variety; alabaster, a fine, white, massive variety.

Gypsy

To play the gypsy; to picnic in the woods.

Gypsyism

The arts and practices or habits of gypsies; deception; cheating; flattery.

gypsyweed

A common hairy European perennial (Veronica officinalis) with pale blue or lilac flowers in axillary racemes.

Gypsywort

A labiate plant (the Lycopus Europ/us). Gypsies are said to stain their skin with its juice.

Gyracanthus

A genus of fossil fishes, found in Devonian and carboniferous strata; -- so named from their round, sculptured spines.

Gyral

Moving in a circular path or way; whirling; gyratory.

Gyrate

To revolve round a central point; to move spirally about an axis, as a tornado; to revolve.

Gyration

The act of turning or whirling, as around a fixed center; a circular or spiral motion; motion about an axis; rotation; revolution.

Gyratory

Moving in a circle, or spirally; revolving; whirling around.

Gyre

To turn round; to gyrate.

Gyrencephala

The higher orders of Mammalia, in which the cerebrum is convoluted.

Gyrfalcon

One of several species and varieties of large Arctic falcons, esp. Falco rusticolus and the white species Falco Islandicus, both of which are circumpolar. The black and the gray are varieties of the former. See Illust. of Accipiter.

Gyro-pigeon

A flying object simulating a pigeon in flight, when projected from a spring trap. It is used as a flying target in shooting matches.

Gyrodus

A genus of extinct o/litic fishes, having rounded teeth in several rows adapted for crushing.

Gyrogonite

The petrified fruit of the Chara hispida, a species of stonewort. See Stonewort.

Gyroidal

Spiral in arrangement or action.

Gyrolepis

A genus of ganoid fishes, found in strata of the new red sandstone, and the lias bone beds.

Gyromancy

A kind of divination performed by drawing a ring or circle, and walking in or around it.

Gyron

A subordinary of triangular form having one of its angles at the fess point and the opposite side at the edge of the escutcheon. When there is only one gyron on the shield it is bounded by two lines drawn from the fess point, one horizontally to the dexter side, and one to the dexter chief corner.

Gyronny

Covered with gyrons, or divided so as to form several gyrons; -- said of an escutcheon.

Gyroscope

A rotating wheel, mounted in a ring or rings, for illustrating the dynamics of rotating bodies, the composition of rotations, etc. It was devised by Professor W. R. Johnson, in 1832, by whom it was called the rotascope.

Gyroscopic

Pertaining to the gyroscope; resembling the motion of the gyroscope.

Gyrose

Turned round like a crook, or bent to and fro.

Gyrostat

A modification of the gyroscope, consisting essentially of a fly wheel fixed inside a rigid case to which is attached a thin flange of metal for supporting the instrument. It is used in studying the dynamics of rotating bodies.

Gyrostatic

Of or pertaining to the gyrostat or to gyrostatics.

Gyrostatics

The doctrine or theory of the gyrostat, or of the phenomena of rotating bodies.

Gyrus

A convoluted ridge between grooves; a convolution; as, the gyri of the brain; the gyri of brain coral. See Brain.

Gyte

Delirious; senselessly extravagant; as, the man is clean gyte.

Gyve

To fetter; to shackle; to chain.

H-bomb

The hydrogen bomb, a thermonuclear weapon that releases atomic energy by union of hydrogen nuclei at high temperatures to form helium. The force of its explosion may range from one to hundreds of megatons of TNT equivalent.

H. M. S.

A prefix used in the names of British warships, meaning His Majesty's Ship or Her Majesty's Ship; as, H. M. S. Pinafore.

H2O

The chemical formula for water.

Ha

An exclamation denoting surprise, joy, or grief. Both as uttered and as written, it expresses a great variety of emotions, determined by the tone or the context. When repeated, ha, ha, it is an expression of laughter, satisfaction, or triumph, sometimes of derisive laughter; or sometimes it is equivalent to /Well, it is so./

Ha-ha

A sunk fence; a fence, wall, or ditch, not visible till one is close upon it.

Haaf

The deep-sea fishing for cod, ling, and tusk, off the Shetland Isles.

Haak

A sea fish. See Hake.

Haar

A fog; esp., a fog or mist with a chill wind.

Habenaria

A genus of chiefly terrestrial orchids with tubers or fleshy roots often having long slender spurs and petals and lip lobes; it includes species formerly placed in the genus Gymnadeniopsis.

Habendum

That part of a deed which follows the part called the premises, and determines the extent of the interest or estate granted; -- so called because it begins with the word Habendum.

Haberdasher

A dealer in small wares, as tapes, pins, needles, and thread.

Haberdashery

The goods and wares sold by a haberdasher; also (Fig.), trifles.

Habergeon

Properly, a short hauberk, but often used loosely for the hauberk.

Habilatory

Of or pertaining to clothing; wearing clothes.

Habile

Fit; qualified; also, apt.

Habilitate

To fit out; to equip; to qualify; to entitle.

Habitable

Capable of being inhabited; that may be inhabited or dwelt in; as, the habitable world.

Habitat

The natural abode, locality or region of an animal or plant.

Habitation

The act of inhabiting; state of inhabiting or dwelling, or of being inhabited; occupancy.

Habited

Clothed; arrayed; dressed; as, he was habited like a shepherd.

Habitual

Formed or acquired by habit or use.

Habituate

Firmly established by custom; formed by habit; habitual.

Habituation

The act of habituating, or accustoming; the state of being habituated.

Habitude

Habitual attitude; usual or accustomed state with reference to something else; established or usual relations.

Habitue

One who habitually frequents a place; as, an habitu/ of a theater.

Habitus

Habitude; mode of life; general appearance.

Hachure

A short line used in drawing and engraving, especially in shading and denoting different surfaces, as in map drawing. See Hatching.

Hacienda

A large estate where work of any kind is done, as agriculture, manufacturing, mining, or raising of animals; a cultivated farm, with a good house, in distinction from a farming establishment with rude huts for herdsmen, etc.; -- a word used in Spanish-American regions.

Hack

To be exposed or offered to common use for hire; to turn prostitute.

Hackamore

A halter consisting of a long leather or rope strap and headstall, -- used for leading or tieing a pack animal.

Hackberry

A genus of trees (Celtis) related to the elm, but bearing drupes with scanty, but often edible, pulp. Celtis occidentalis is common in the Eastern United States.

Hackbolt

The greater shearwater or hagdon. See Hagdon.

Hackee

The chipmunk; also, the chickaree or red squirrel.

Hackelia

A genus of plants with seeds that stick to clothing, including stickseed and some of the beggar's lice.

hacker

One who, or that which, hacks. A cutting instrument for making notches; esp., one used for notching pine trees in collecting turpentine; a hack.

hackery

A cart with wooden wheels, drawn by bullocks.

hackie

The driver of a taxicab; a hackman.

Hackle

To separate, as the coarse part of flax or hemp from the fine, by drawing it through the teeth of a hackle or hatchel.

Hackly

Rough or broken, as if hacked.

Hackman

The driver of a hack or carriage for public hire.

Hackmatack

The American larch (Larix Americana), a coniferous tree with slender deciduous leaves; also, its heavy, close-grained timber. Called also tamarack.

Hackney

To devote to common or frequent use, as a horse or carriage; to wear out in common service; to make trite or commonplace; as, a hackneyed metaphor or quotation.

Hackneyman

A man who lets horses and carriages for hire.

Hackster

A bully; a bravo; a ruffian; an assassin.

Haddock

A marine food fish (Melanogrammus aeglefinus), allied to the cod, inhabiting the northern coasts of Europe and America. It has a dark lateral line and a black spot on each side of the body, just back of the gills. Galled also haddie, and dickie.

Hade

To deviate from the vertical; -- said of a vein, fault, or lode.

Hades

The nether world (according to classical mythology, the abode of the shades, ruled over by Hades or Pluto); the invisible world; the grave.

Hadj

The pilgrimage to Mecca, performed by Muslims. It is the duty of Moslems to make a journey to Mecca at least once ina lifetime, or if that is not possible, three journeys to one of the alternate sacred sites.

Hadji

A Muslim who has made a pilgrimage to Mecca; -- used among Orientals as a respectful salutation or a title of honor.

hadron

any elementary particle that interacts strongly with other particles.

hadrosaur

Any member of the genus Hadrosaurus or family Hadrosauridae, an extinct family of heavy bipedal partly aquatic dinosaurs with duck-billed skull and webbed feet; of the Upper Cretaceous in North America.

Hadrosauridae

A natural family of extinct reptiles including the duck-billed dinosaurs.

Hadrosaurus

An American herbivorous dinosaur of great size, allied to the iguanodon. It is found in the Cretaceous formation.

Haemacyanin

A substance found in the blood of the octopus, which gives to it its blue color.

Haemacytometer

An apparatus for determining the number of corpuscles in a given quantity of blood.

Haemad

Toward the haemal side; on the haemal side of; -- opposed to neurad.

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