Search the Dictionary

up 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.

dual 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.

d, 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.

and 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.

e, 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 w…

The female of the sheep, and of sheeplike animals.

To thrust out or eject; to expel; as, to exclude young animals from the womb or from eggs. Excluded middle. (logic) The name given to the third of the "three logical axioms," so-called, namely, to that one which is expressed by the formula: "Everything is either A or Not-A." no third state or condition being involved o…

Matter excreted and ejected; that which is excreted or cast out of the animal body by any of the natural emunctories; especially, alvine, discharges; dung; ordure.

of art, or of feats of skill, or of oratorical or dramatic ability; as, an exhibition of animals; an exhibition of pictures, statues, etc.; an industrial exhibition.

d pith, the wood forming a layer between the other two, and increasing, if at all, by the animal addition of a new layer to the outside next to the bark. The leaves are commonly netted-veined, and the number of cotyledons is two, or, very rarely, several in a whorl. Cf. Endogen. Gray.

The hardened parts of the external integument of an animal, including hair, feathers, nails, horns, scales, etc.,as well as the armor of armadillos and many reptiles, and the shells or hardened integument of numerous invertebrates; external skeleton; dermoskeleton.

Boneless. "Exosseous animals. " Sir T. Browne.