Part 132

AN´ATINE, a. Duck-like.

ANCHYLO´SIS or ANKYLO´SIS, n. Restriction or loss of motion in a naturally movable joint; also, any coössification.

AN´CONAL, a. Pertaining to the elbow.

ANGLE OF CHIN = ANGULUS MENTI. (23.)

ANGLE OF MOUTH = ANGULUS ORIS. (27.)

AN´GULUS O´RIS, n. Corner of the mouth; equivalent to commissural point.

AN´NOTINE, n. A bird one year old, or which has once moulted.

AN´NULAR, a. Ringed.

AN´NULUS, n. Ring.

ANOM´ALOUS, a. Extremely irregular; very strange or unusual; contrary to natural order (nearly synonymous with abnormal).

AN´SERINE, a. Pertaining to the Anseres; goose-like.

AN´TE- (in composition). Before; as, anteocular, anteorbital, etc.

ANTERIOR, a. Forward; in front of.

ANTERIOR PORTION. (7.) See STETHIÆUM.

ANTERIOR TOES. (124.)

AN´TI- (in composition). Against.

AN´TIÆ, n. pl. Frontal points; projections of feathers on either side of base of culmen. (36.)

ANTIBRACH´IUM, n. Cubit or forearm.

A´NUS, n. Outlet of refuse of digestion. In birds, the same orifice discharges the products of the genito-urinary organs.

AOR´TA, n. The first great artery, immediately issuing from the left ventricle of the heart.

AOR´TIC, a. Pertaining to the aorta.

APERTU´RA, n. An opening; as, apertura auris, ear-opening.

A´PEX, n.; pl. apices. Tip or point of anything.

APOHY´AL, a. A portion of the “horn” of the hyoid bone.

APONEURO´SIS, n. Broad, strong, fibrous membrane or band; fascia.

APOPH´YSIS, n. Any natural bony prominence of notable size.

APPOSED´, a. Mutually fitted, adapted; set over against; meeting closely and exactly. The tomia of the bill are usually apposed.

APTE´RIUM, n.; pl. apteria. Tract of skin where no feathers grow. Compare PTERYLA.