/ Dictionary / Index Q quinone diimine: Meaning and Definition of Find definitions for: quinone' di'i•mine Pronunciation: (dī'u-mēn"), [key] — Chem. Chem. a colorless, crystalline solid, CHN, the parent of the indamine dyes. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. quinone quinonimine Related Content Daily Word Quiz: exemplary Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language