A thin membrane (a double layer of lipids) enclosing the cytoplasm of a cell; proteins in the membrane control passage of ions (like sodium or potassium or calcium) in and out of the cell.

synonyms: cell membrane, cytomembrane.

Dutch: celmembraan, plasmalemma, plasmamembraam, celmembraam
Polish: plazmolema, błona plazmatyczna, plazmalemma, błona komórkowa