/ Dictionary / Index L lamprey: Meaning and Definition of Find definitions for: lam•prey Pronunciation: (lam'prē), [key] — pl. -preys. any eellike marine or freshwater fish of the order Petromyzoniformes, having a circular, suctorial mouth with horny teeth for boring into the flesh of other fishes to feed on their blood. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: lamprey (Thesaurus) lamppost lamprophony Related Content Daily Word Quiz: dormant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language