Mastoid

['mæstɒɪd] or ['mæstɔɪd]

(noun.) process of the temporal bone behind the ear at the base of the skull.

(adj.) relating to or resembling a nipple .

(adj.) of or relating to or in the region of the mastoid process .

Typed by Hector--From WordNet

(a.) Resembling the nipple or the breast; -- applied specifically to a process of the temporal bone behind the ear.

(a.) Pertaining to, or in the region of, the mastoid process; mastoidal.

Typed by Darla