/ Dictionary / Index C cupronickel: Meaning and Definition of Find definitions for: cu•pro•nick•el Pronunciation: (ky'pru-nik"ul, k'-), [key] — n. any of various alloys of copper containing up to 40 percent nickel. —adj. containing copper and nickel. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: cupronickel (Thesaurus) cupro- cuprous Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language