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A tuft or brush of hair on the knees of some species of antelopes and other animals; -- chiefly used in the plural.

A felling by a knock, as of a combatant, or of an animal.

Ceremonially clean, according to Jewish law; --applied to food, esp. to meat of animals slaughtered according to the requirements of Jewish law. Opposed to tref. Hence, designating a shop, store, house, etc., where such food is sold or used.

A carnivorous animal (Crossarchus obscurus) of tropical Africa. It its allied to the civets. Called also kusimansel, and mangue.

recording graphically, the pressure of the blood in any of the blood vessels of a living animal; -- called also kymographion.

The produce of animals yielding milk; milk and that which is made from it.

ace between the cells of plants, or one of the spaces left among the tissues of the lower animals, which serve in place of vessels for the circulation of the body fluids, or the cavity or sac, usually of very small size, in a mucous membrane.

theory that structural variations, characteristic of species and genera, are produced in animals and plants by the direct influence of physical environments, and esp., in the case of animals, by effort, or by use or disuse of certain organs.

led also calfkill, sheepkill, sheep laurel, etc. It is supposed to poison sheep and other animals that eat it at times when the snow is deep and they cannot find other food.

te; the sides of the head and beard black. It feeds partly on carrion and partly on small animals, which it kills. It has the habit of carrying tortoises and marrow bones to a great height, and dropping them on stones to obtain the contents, and is therefore called bonebreaker and ossifrage. It is supposed to be the os…

A small fishlike animal (Amphioxus lanceolatus), remarkable for the rudimentary condition of its organs. It is the type of the class Leptocardia. See Amphioxus, Leptocardia.

The inarticulate sounds by which animals inferior to man express their feelings or their wants.

The early, immature form of any animal when more or less of a metamorphosis takes place, before the assumption of the mature shape.

A leash in which an animal is caught or held; hence, a snare. [Obs.]

e and offensive stinging cells, found in great numbers in all coelenterates, and in a few animals of other groups. They are most highly developed in the tentacles of jellyfishes, hydroids, and Actiniæ. Each of these cells is filled with, fluid, and contains a long, slender, often barbed, hollow thread coiled up within…

e-cutting bee. -- Leaf fat, the fat which lies in leaves or layers within the body of an animal. -- Leaf flea (Zoöl.), a jumping plant louse of the family Psyllidæ. -- Leaf frog (Zoöl.), any tree frog of the genus Phyllomedusa. -- Leaf green.(Bot.) See Chlorophyll. -- Leaf hopper (Zoöl.), any small jumping hemipte…

The skin of an animal, or some part of such skin, tanned, tawed, or otherwise dressed for use; also, dressed hides, collectively.

A complex, nitrogenous phosphorized substance widely distributed through the animal body, and especially conspicuous in the brain and nerve tissue, in yolk of eggs, and in the white blood corpuscles.

orax), commonly attacking the membrane that lines the inside of the mouth and nostrils of animals that drink at pools where it lives.

to a part of the body; as, the left ear. Also said of the corresponding side of the lower animals. Left bank of a river, that which is on the left hand of a person whose face is turned downstream. -- Left bower. See under 2d Bower. -- Left center, the members whose sympathies are, in the main, with the members of the…