Plasma \Plas"ma\, n. [See Plasm.]

1. (Min.) A variety of quartz, of a color between grass green and leek green, which is found associated with common chalcedony. It was much esteemed by the ancients for making engraved ornaments.

2. (Biol.) The viscous material of an animal or vegetable cell, out of which the various tissues are formed by a process of differentiation; protoplasm.

3. Unorganized material; elementary matter.

4. (Med.) A mixture of starch and glycerin, used as a substitute for ointments. --U. S. Disp.

Source: Webster's Revised Unabridged Dictionary (1913)