乳突的
Mastoidal \Mas*toid"al\, a. Same as {Mastoid}.
mastoidal adj 1: of or relating to or in the region of the mastoid process 2: relating to or resembling a nipple [syn: {mastoid}] mastoidal n : process of the temporal bone behind the ear at the base of the skull [syn: {mastoid}, {mastoid process}, {mastoid bone}]