Defn: Pain occuring in the mamma or female breast, — a form of neuralgia.

MASTOID Mas"toid, a. Etym: [Gr. mastoïde.] (Anat.) (a) Resembling the nipple or the breast; — applied specifically to a process of the temporal bone behind the ear. (b) Pertaining to, or in the region of, the mastoid process; mastoidal.

MASTOIDAL
Mas*toid"al, a.

Defn: Same as Mastoid.

MASTOIDITIS
Mas`toid*i*tis, n. [NL. See Mastoid, and -itis.] (Med.)

Defn: Inflammation in the mastoid process of the temporal bone.

MASTOLOGY
Mas*tol"o*gy, n. Etym: [Gr. -logy: cf. F. mastologie.]

Defn: The natural history of Mammalia.

MASTRESS
Mas"tress, n.

Defn: Mistress. [Obs.] Chaucer.