plasmalemma noun. ['plazmǝlɛmǝ] Pl. -mmas, -mmae [-mi:]. E20.
[from PLASMA- + Greek lemma rind: see LEMMA noun².]
Biology. A plasma membrane which bounds a cell, esp. one immediately within the wall of a plant cell.

■ plasmalemmal adjective of, pertaining to, or formed from a plasmalemma M20.

■ plasma'lemmasome noun (Cytology) a plant or microbial cell organelle formed by invagination of the plasmalemma M20.

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