Plasma - Definition
plasma
n 1: the colorless watery fluid of the blood and lymph that
contains no cells, but in which the blood cells
(erythrocytes, leukocytes, and thrombocytes) are suspended
[syn: plasma, plasm, blood plasma]
2: a green slightly translucent variety of chalcedony used as a
gemstone
3: (physical chemistry) a fourth state of matter distinct from
solid or liquid or gas and present in stars and fusion
reactors; a gas becomes a plasma when it is heated until the
atoms lose all their electrons, leaving a highly electrified
collection of nuclei and free electrons; "particles in space
exist in the form of a plasma"