/ Dictionary / Index C cold light: Meaning and Definition of Find definitions for: cold' light' Pronunciation: [key] light emitted by a source that is not incandescent, as from a firefly. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cold-hearted cold one Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language