/ Dictionary / Index T testa: Meaning and Definition of Find definitions for: tes•ta Pronunciation: (tes'tu), [key] — pl. -tae the outer, usually hard, integument or coat of a seed. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: testa (Thesaurus) test testacean Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language