/ Dictionary / Index F flash burn: Meaning and Definition of Find definitions for: flash' burn" Pronunciation: [key] a burn produced by brief exposure to intense, radiant heat, as from an explosion. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. flashbulb flash butt welding Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language