plasma membrane A unit membrane surrounding the cell's protoplasm; cell membrane; plasmalemma.
plasmatocytes n.pl. [Gr. plasma, formed or molded; kytos, container] Small to large polymorphic hemocytes with a round to elongate nucleus and with either homogeneous or finely granular or finely vacuolated cytoplasm.
plasmid n. [Gr. plasma, formed or molded; eidos, like] DNA molecules that are not attached to a chromosome but are inherited regularly.
plasmon n. [Gr. plasma, formed or molded] All extrachromosomal hereditary determinents; plasmotype.
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