/ Dictionary / Index M meatus: Meaning and Definition of Find definitions for: me•a•tus Pronunciation: (mē-ā'tus), [key] — pl. -tus•es, -tus. an opening or foramen, esp. in a bone or bony structure, as the opening of the ear or nose. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: meatus (Thesaurus) meat tea meat wagon Related Content Daily Word Quiz: abominable Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language