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such nouns as have but one form of gender, either the masculine or feminine, to indicate animals of both sexes; as bos, for the ox and cow; sometimes applied to eunuchs and hermaphrodites.

A cartilage or bone in front of the pubis in some amphibians and other animals.

Living upon the exterior of another animal; ectozoic; -- said of external parasites.

p of invertebrates of various kinds, which live parasitically upon the exterior of other animals; an ectozoön. Among them are the lice, ticks, many acari, the lerneans, or fish lice, and other crustaceans.

Of the nature of a disease which attacks many animals at the same time; -- corresponding to epidemic diseases among men.

The process by which animal and vegetable organisms preserve a physiological balance. H. Spenser.

To animate; to encourage; to cheer. It raiseth the dropping spirit, erecting it to a loving complaisance. Barrow.

ual oxidation from exposure to air and moisture, as in the decay of old trees or of dead animals.

A valuable fur-bearing animal of the genus Mustela (M. erminea), allied to the weasel; the stoat. It is found in the northern parts of Asia, Europe, and America. In summer it is brown, but in winter it becomes white, except the tip of the tail, which is always black.

alse notion; wrong opinion; mistake; misapprehension. Herror, though his candor remained unimpaired. Bancroft.

, or able, to estimate; serving for, or capable of being used in, estimating. We find in animals an estimative or judicial faculty. Sir M. Hale.

Any valuable animal, not wild, found wandering from its owner; a stray. Burrill.

The science of improving stock, whether human or animal. F. Galton.

A limpid, oily liquid obtained by the destructive distillation of various vegetable and animal substances; -- specifically, an oil consisting largely of the higher hydrocarbons of the paraffin series. [Written also eupion.]

Organizable substance by which the tissues of an animal body are renewed.

nd China. It has a strong odor, and is said to be obtained from the urine of herbivorous animals when fed on the mango. It consists if a magnesium salt of euxanthic acid. Called also puri, purree, and Indian yellow.

Having equanimity.

l, or disturbed; smoothness; horizontal position; uniformity; impartiality; calmness; equanimity; appropriate place or level; as, evenness of surface, of a fluid at rest, of motion, of dealings, of temper, of condition. It had need be something extraordinary, that must warrant an ordinary person to rise higher than his…

, in the process of growth; development; as, the evolution of a flower from a bud, or an animal from the egg.

disentangle and exhibit clearly and satisfactorily; to develop; to derive; to educe. The animal soul sooner evolves itself to its full orb and extent than the human soul. Sir. M. Hale. The principles which art involves, science alone evolves. Whewell. Not by any power evolved from man's own resources, but by a power wh…