/ Dictionary / Index W witherite: Meaning and Definition of Find definitions for: with•er•ite Pronunciation: (wi'u-rīt"), [key] — n. a white to grayish mineral, barium carbonate, BaCO, occurring in crystals and masses: a minor ore of barium. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. wither withe rod Related Content Daily Word Quiz: abstain Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language