plasma

n 1: an electrically neutral ionized gas in an electric

discharge; distinctly different from solids and liquids

and normal gases

2: any watery animal fluid [syn: {serum}, {plasm}]

3: a green slightly translucent variety of chalcedony used as a

gemstone

4: (physical chemistry) the gaseous state of hot ionized

material consisting of ions and electrons and present in

the stars and fusion reactors: sometimes regarded as a

fourth state of matter distinct from normal gasses

PLASMA

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].