Plăs'ma, n.

n. [Gr. πλάσμα, any thing formed or molded, also that which is imitated, from πλάσσειν, to form, mold; Fr. plasme. Cf. supra.]

1. (Min.) A variety of quartz, of a color between grass-green and leek-green, occurring in angular pieces in beds, associated with common chalcedony, and among the ruins of Rome.
2. (Physiol.) The viscous material of a cell from which the new developments take place; also, the colorless fluid of the blood. R. Owen.