Allanto´is, n. A certain organ of the embryo.

Al´lex, n. Same as Hallux (which see).

Al´trices, n. pl. Birds reared in the nest and fed by the parents.

Altric´ial, a. Having the nature of Altrices.

Al´ula, n. Literally, little wing. The bastard wing, composed of the feathers that are set on the so-called thumb.

Al´ular, a. Pertaining to the bastard wing.

Alve´olus, n. Socket, particularly of a tooth.

Al´vine, a. Pertaining to the lower belly (said chiefly of intestinal discharges).

Am´bulatory, a. Same as Gradient (which see).