/ Dictionary / Index F Fleming valve: Meaning and Definition of Find definitions for: Flem'ing valve" Pronunciation: [key] — Electronics. Electronics. (formerly) a diode. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Fleming Flemish Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language