mastoidal
乳突的
mas·toi·dal /mæˈstɔɪdḷ/ 形容詞
Mas·toid·al a. Same as Mastoid.
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mastoidal
adj 1: of or relating to or in the region of the mastoid process
2: relating to or resembling a nipple [syn: mastoid]
n : process of the temporal bone behind the ear at the base of
the skull [syn: mastoid, mastoid process, mastoid
bone]