/ Dictionary / Index C cupferron: Meaning and Definition of Find definitions for: cup•fer•ron Pronunciation: (kup'fu-ron", kyp'-, kp'-), [key] — n. a creamy-white crystalline substance, CHNO, used as a reagent in analytical chemistry for the detection of copper. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Cupertino cupflower Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language