/ Dictionary / Index N niobic: Meaning and Definition of Find definitions for: ni•o•bic Pronunciation: (nī-ō'bik, -ob'ik), [key] — adj. Chem. of or pertaining to niobium; columbic. of or derived from niobic acid. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Niobe niobic acid Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language