/ Dictionary / Index F firedamp: Meaning and Definition of Find definitions for: fire•damp Pronunciation: (fīr'damp"), [key] — n. Mining. a combustible gas consisting chiefly of methane, formed esp. in coal mines, and dangerously explosive when mixed with certain proportions of atmospheric air. the explosive mixture itself. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: firedamp (Thesaurus) fire curtain fire department Related Content Daily Word Quiz: penchant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language