Dictionary
me•a•tus
Pronunciation: (mē-ā'tus), [key]—
n.,
—pl. -tus•es, -tus.
Anat.
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.