Part 158

MAC´ULATE, a. Spotted.

MAG´NUM, a. for n. One of the carpal bones.

MA´LA, n. Basal portion of outside of lower jaw, usually feathered. (Sometimes used for corresponding portion of upper jaw; the site and boundary of mala and gena are not well determined, and vary with writers. Both lie on side of head, back of bill, and under lore, eye, and ear.) (26.)

MA´LAR RE´GION. Same as mala.

MALLEO´LUS, n.; pl. malleoli. The enlarged articular surface of the bottom of the tibia; in birds formed by confluence of the two proximal tarsal ossicles.

MAL´LEUS, n. A bone of the inner ear of mammalia, held by high authority as probably homologous with the OS QUADRATUM (which see).

MAM´MA, n. Teat.

MAM´MARY, a. Pertaining to the teats, or function of lactation.

MAN´DIBLE, MANDIB´ULA, n. Jaw. Properly the under jaw, the upper jaw being maxilla. (11.)

MANDIB´ULAR, a. Pertaining to the under jaw. (Maxillary relates to the upper jaw.)

MANDUCA´TION, n. Mastication.

MANDU´CATORY, a. Pertaining to mastication.

MANTLE, n. (61.) See STRAGULUM and PALLIUM.

MANU´BRIUM STER´NI, n. (Literally “handle.”) Process of breast-bone on front border at root of keel.

MAN´US, n. Hand; all of the wing, excepting the feathers, which lies beyond the wrist; the metacarpus and digits, with associate soft parts. It corresponds with pes.

MAR´BLING, n. Fine spotting and streaking intermixed; variegation like marble. The markings are more distinct than in clouding or nebulation.

MAR´GINAL FRINGE, n. See LOMA. (135.)

MAR´GO, n. Margin. Margo mentalis, inner boundary of the forks of the mandible. Margo malaris, boundary of the base of the mala.

MARSU´PIUM, n. Vascular, erectile, membranous organ in the back chamber of the eye of birds, supposed to aid in accommodation of vision. Also called pecten.

MASSE´TER, n. One of the muscles that effect mastication.

MAS´TAX, n. “Side of the forepart of head, adjacent to the base of the bill.” (37.) (Little used, and undistinguished from lore.)

MAS´TOID, a. Name of a process of the temporal bone.

MA´TRIX, n. Mould. Tissue or organ containing something and determining its form or other condition.

MAXIL´LA, n. Jaw, especially the upper jaw, or maxilla superior; the maxilla inferior being especially called mandibula. (10.)

MAX´ILLAR, MAX´ILLARY, a. Pertaining to the upper jaw. Maxillary bone, the cheek-bone; in birds an inconsiderable bone of the bill itself, not of the cheek.

MAX´ILLO-PAL´ATINE (bone), n. Certain paired bone of the upper jaw in the palate.

MEA´TUS, n. Passage or canal. Meatus auditorius, ear-passage.

ME´DIAN, a. Lying in the middle line. Opposed to lateral.