[plaz-muh] /ˈplæz mə/
Anatomy, Physiology. the liquid part of blood or lymph, as distinguished from the suspended elements.
Cell Biology. .
a green, faintly translucent chalcedony.
Physics. a highly ionized gas containing an approximately equal number of positive ions and electrons.
the clear yellowish fluid portion of blood or lymph in which the red blood cells, white blood cells, and platelets are suspended
short for blood plasma
a former name for protoplasm, cytoplasm
a green slightly translucent variety of chalcedony, used as a gemstone
a less common term for whey
1712, “form, shape” (earlier plasm), from Late Latin plasma, from Greek plasma “something molded or created,” hence “image, figure; counterfeit, forgery; formed style, affectation,” from plassein “to mold,” originally “to spread thin,” from PIE *plath-yein, from root *pele- (2) “flat, to spread” (see plane (n.1)). Sense of “liquid part of blood” is from 1845; that of “ionized gas” is 1928.
plasma plas·ma (plāz’mə) or plasm (plāz’əm)
plas·mat’ic (plāz-māt’ĭk) or plas’mic (-mĭk) adj.
A state of matter in which some or all of the electrons have been torn from their parent atoms. The negatively charged electrons and positively charged ions move independently.
Note: Plasmas are usually associated with very high temperatures — most of the sun is a plasma, for example.
The liquid part of blood or lymph. Blood plasma is mainly water; it also contains gases, nutrients, and hormones. The red blood cells, white blood cells, and platelets are all suspended in the plasma of the blood.
PLAnner-like System Modelled on Actors. Carl Hewitt, 1975. The first actor language. Originally called Planner-73, and implemented in MacLisp. Lisp-like syntax, but with several kinds of parentheses and brackets.
[“A PLASMA Primer”, B. Smith et al, AI Lab Working Paper 92, MIT Oct 1975].
[“Viewing Control Structures as Patterns of Passing Messages”, C. Hewitt, AI Lab Memo 410, MIT 1976].
- Plasma accelerator globulin
plasma accelerator globulin n. See factor V.
noun 1. a glass globe containing a low density gas and a central electrode that creates lightning-like streams of light.
plasmablast plas·ma·blast (plāz’mə-blāst’) n. The stem cell of a plasma cell.
noun 1. Anatomy. an antibody-secreting cell, derived from B cells, that plays a major role in antibody-mediated immunity. plasma cell n. An antibody-producing lymphocyte derived from a B cell upon reaction with a specific antigen. Also called plasmacyte. plasma cell A lymphocyte that originates from a B cell and produces antibodies as part of a […]