/ Dictionary / Index P plasmalogen: Meaning and Definition of Find definitions for: plas•mal•o•gen Pronunciation: (plaz-mal'u-jin, -jen"), [key] — n. Biochem. any of the class of phosphatides that contain an aldehyde of a fatty acid, found in heart and skeletal muscle, the brain, the liver, and in eggs. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. plasmalemma plasma membrane Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language