/ Dictionary / Index T tantalic: Meaning and Definition of Find definitions for: tan•tal•ic Pronunciation: (tan-tal'ik), [key] — adj. Chem. of or pertaining to tantalum, esp. in the pentavalent state. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. tantalate tantalic acid Related Content Daily Word Quiz: wizened Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language