/ Dictionary / Index F flashtube: Meaning and Definition of Find definitions for: flash•tube Pronunciation: (flash'tb", -tyb"), [key] — n. Photog. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. flash spectrum flash welding Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language