Part 131

AL´A, n.; pl. alæ. Wing; the anterior limb of birds. (73.)

A´LAR, a. Pertaining to the wings.

ALAT´US, a. Winged.

AL´BINISM, n. State of whiteness, complete or partial, resulting from deficiency or entire lack of pigment in the skin and its appendages.

ALBI´NO, n. An animal affected with albinism.

ALBINOT´IC, a. Affected with albinism.

ALBU´MEN, n. Transparent glairy fluid of which white of egg mainly consists.

ALBU´MINOUS, a. Containing or consisting of albumen.

ALIMEN´TARY, a. Pertaining to the digestive organs or nutritive function.

ALISPHE´NOID, n. “Wing,” or expanded part of sphenoid bone.

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).

AM´NION, n. A certain organ of the embryo.

AMO´TUS, a. Denoting the hind toe so elevated and short that the tip does not touch the ground. (132.)

AMPHIARTHRO´DIAL, a. Denoting a sliding joint, or one capable of mixed movement.

AMPHICŒL´IAN, a. Said of a vertebra when both ends of its centrum are cupped. Corresponding terms are procœlian, cupped in front, and opisthocœlian, cupped behind.

AMPUL´LA, n. A certain cavity of the inner ear.

A´NAL, a. Pertaining to the anus; situated about the anus.

ANALOG´ICAL, a. Having analogy; related by analogy.

ANAL´OGY, n. Quality of likeness in certain (generally superficial or inconsiderable) respects, between things essentially unlike. There may be analogy entirely without homology, as between the wing of a bird and of a butterfly.

ANASTOMO´SIS, n. Inosculation or intercommunication of two or more vessels.