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An extensive division of Mammalia. It formerly included the Proboscidea, Hyracoidea, Perissodactyla, and Artiodactyla, but by later writers it is generally restricted to the two latter groups (Ungulata). They feed almost exclusively upon vegetation.

pass the season of winter in close quarters, in a torpid or lethargic state, as certain mammals, reptiles, and insects. Inclination would lead me to hibernate, during half the year, in this uncomfortable climate of Great Britain. Southey.

An extinct genus of Tertiary mammals allied to the horse, but three-toed, having on each foot a small lateral hoof on each side of the main central one. It is believed to be one of the ancestral genera of the Horse family.

A large, amphibious, herbivorous mammal (Hippopotamus amphibius), common in the rivers of Africa. It is allied to the hogs, and has a very thick, naked skin, a thick and square head, a very large muzzle, small eyes and ears, thick and heavy body, and short legs. It is supposed to be the behemoth of the Bible. Called al…

r writers using the term homoplasmy). Thus, there is homogeny between the fore limb of a mammal and the wing of a bird; but the right and left ventricles of the heart in both are only in homoplasy with each other, these having arisen independently since the divergence of both groups from a univentricular ancestor.…

A disease in cattle consisting in inflammation of the stomach by gas, ordinarily caused by eating too much green food; tympany; bloating.

ained by the action of acids (as sulphuric) on metals, as zinc, iron, etc. It is very inflammable, and is an ingredient of coal gas and water gas. It is standard of chemical equivalents or combining weights, and also of valence, being the typical monad. Symbol H. Atomic weight 1.

Any carnivorous mammal of the family Hyænidæ, of which three living species are known. They are large and strong, but cowardly. They feed chiefly on carrion, and are nocturnal in their habits. [Written also hyæna.]

rt of the hyoid arch, as in fishes, instead of directly articulated with the skull as in mammals; -- said of the skull.

ition of the blood, characterized by an abnormally large amount of fibrin, as in many inflammatory diseases.

An order of small hoofed mammals, comprising the single living genus Hyrax.

Any carnivorous mammal of the genus Herpestes, and family Viverridæ. Numerous species are found in Asia and Africa. The Egyptian species(H. ichneumon), which ranges to Spain and Palestine, is noted for destroying the eggs and young of the crocodile as well as various snakes and lizards, and hence was considered sacred…

d to be occasioned by the decomposition of animal or vegetable substances, or by some inflammable gas; -- popularly called also Will-with-the-wisp, or Will-o'-the-wisp, and Jack-with-a- lantern, or Jack-o'-lantern.

A transliteration of the four constants forming the Hebrew tetragrammaton or "incommunicable name" of the Supreme Being, which in latter Jewish tradition is not pronounced save with the vowels of adonai or elohim, so that the true pronunciation is lost.

A mammal having no placenta.

A primary division of the Mammalia, including the monotremes and marsupials, in which no placenta is formed.

Tending to excite or inflame factions, sedition, or quarrel; inflammatory; seditious. Paley. Incendiary shell, a bombshell. See Carcass, 4.

Promoting faction or contention; seditious; inflammatory. [Obs.] Bacon. -- In*cen"di*ous*ly, adv. [Obs.]

Tending to excite or provoke; inflammatory. Barrow.

Not combustible; not capable of being burned, decomposed, or consumed by fire; uninflammable; as, asbestus is an incombustible substance; carbon dioxide is an incombustible gas. Incombustible cloth, a tissue of amianthus or asbestus; also, a fabric imbued with an incombustible substance. -- In`com*bus"ti*ble*ness, n.…