资料来源 : pyDict

乳般突起炎

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Mastoiditis \Mas`toid*i*tis\, n. [NL. See {Mastoid}, and
   {-itis}.] (Med.)
   Inflammation in the mastoid process of the temporal bone.

资料来源 : WordNet®

mastoiditis
     n : inflammation of the mastoid