mus·ta·chio also mous·ta·chio  (mə-stāsh'ō, -stāsh'ē-ō', -stä'shō, -shē-ō')  n. pl. mus·ta·chios also mous·ta·chios A mustache, especially a luxuriant one. [Ultimately from Italian dialectal mustaccio, mustache; see mustache.] mus·ta'chioed (-stāsh'ōd, -stāsh'ē-ōd', -stä'shōd, -shē-ōd') adj. |