/ Dictionary / Index T tunica: Meaning and Definition of Find definitions for: tu•ni•ca Pronunciation: (t'ni-ku, ty'-), [key] — pl. -cae a tunic. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tunica (Thesaurus) tunic tunicate Related Content Daily Word Quiz: effervescent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language