/ Dictionary / Index N Niobid: Meaning and Definition of Find definitions for: Ni•o•bid Pronunciation: (nī'ō-bid), [key] — n. Class. Myth. any of the children of Niobe. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. niobic acid niobium 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