/ Dictionary / Index Y yellow copper ore: Meaning and Definition of Find definitions for: yel'low cop'per ore' Pronunciation: [key] chalcopyrite. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. yellow card yellow-crowned night heron Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language