/ Dictionary / Index L lung fluke: Meaning and Definition of Find definitions for: lung' fluke" Pronunciation: [key] any of various trematodes, as Paragonimus westermani, parasitic in the lungs of humans and other mammals. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. lungfish lungi Related Content Daily Word Quiz: hedonist Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language