mous·ta·chio (mə-stāch'ō, -stāsh'ē-ōd', -stä'shōd, -shē-ō') adj. Variant of mustachio.
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.