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-bodied animals, because they maintain a nearly uniform temperature in spite of the great variations in the surrounding air; in distinct from the cold-blooded (poikilothermal) animals, whose body temperature follows the variations in temperature of the surrounding medium.

of composition varying by a small, regular difference, and usually attended by a regular variation in physical properties; as, there is an homology between methane, CH4, ethane, C2H6, propane, C3H8, etc., all members of the paraffin series. In an extended sense, the term is applied to the relation between chemical ele…

Of the same tenor or tone; equable; without variation.

d the Arabiab bee (A. fasciata). The two latter are by many entomologists considered only varieties of the common hive bee. Each swarm of bees consists of a large number of workers (barren females), with, ordinarily, one queen or fertile female, but in the swarming season several young queens, and a number of males or…

An old measure of capacity, variously estimated at from one to four pecks. [Eng.] Halliwell. Bulge hoop, Chine hoop, Quarter hoop, the hoop nearest the middle of a cask, that nearest the end, and the intermediate hoop between these two, respectively. -- Flat hoop, a wooden hoop dressed flat on both sides. -- Half-rou…

d instrument of music; originally, one made of a horn (of an ox or a ram); now applied to various elaborately wrought instruments of brass or other metal, resembling a horn in shape. "Wind his horn under the castle wall." Spenser. See French horn, under French.

large and hollow and is situated on the upper side of the beak. The size of the hornbill varies from that of a pigeon to that of a raven, or even larger. They feed chiefly upon fruit, but some species eat dead animals.

The common black, or dark green or brown, variety of amphibole. (See Amphibole.) It belongs to the aluminous division of the species, and is also characterized by its containing considerable iron. Also used as a general term to include the whole species. Hornblende schist (Geol.), a hornblende rock of schistose structu…

Virginianus), having a pair of elongated tufts of feathers on the head. Several distinct varieties are known; as, the Arctic, Western, dusky, and striped horned owls, differing in color, and inhabiting different regions; -- called also great horned owl, horn owl, eagle owl, and cat owl. Sometimes also applied to the l…

A siliceous stone, a variety of quartz, closely resembling flint, but more brittle; -- called also chert.

The name is locally applied to various other fishes, as the California hake, the black candlefish, the jurel, the bluefish, etc. -- Horse marine (Naut.), an awkward, lubbery person; one of a mythical body of marine cavalry. [Slang] -- Horse mussel (Zoöl.), a large, marine mussel (Modiola modiolus), found on the northe…

A mingled mass; a confused mixture; a stew of various ingredients; a hodgepodge. A mixture or hotchpotch of many tastes. Bacon.

A term employed to describe one of the varieties of stammering. Tylor.

A variety of the domestic dog, usually having large, drooping ears, esp. one which hunts game by scent, as the foxhound, bloodhound, deerhound, but also used for various breeds of fleet hunting dogs, as the greyhound, boarhound, etc. Hounds and greyhounds, mongrels, spaniels, curs. Shak.

A head covering of various kinds; a hood; a coif; a cap. [Obs.] Chaucer.

An artificial barrier, variously constructed, over which men or horses leap in a race. Hurdle race, a race in which artificial barriers in the form of hurdles, fences, etc., must be leaped.

The business of a husbandman, comprehending the various branches of agriculture; farming. Husbandry supplieth all things necessary for food. Spenser.

genus Hyacinthus, bearing beautiful spikes of fragrant flowers. H. orientalis is a common variety.

A pellucid variety of opal in globules looking like colorless gum or resin; -- called also Müller's glass.

A membranous sac or bladder filled with a pellucid fluid, found in various parts of the bodies of animals, but unconnected with the tissues. It is usually formed by parasitic worms, esp. by larval tapeworms, as Echinococcus and Coenurus. See these words in the Vocabulary. Hydatid of Morgagni (Anat.), one of the small p…