/ Dictionary / Index P plasma membrane: Meaning and Definition of Find definitions for: plas'ma mem'brane Pronunciation: [key] — Cell Biol. Cell Biol. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. plasmalogen plasmapause 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