/ Dictionary / Index M metatoluidine: Meaning and Definition of Find definitions for: met•a•to•lu•i•dine Pronunciation: (met"u-tu-l'i-dēn", -din), [key] — n. Chem. a colorless, slightly water-soluble liquid, CHN, the meta isomer of toluidine, used in the manufacture of dyes and other organic compounds. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. metathorax metatrophic Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language