In physical and chemical usage, plasma refers to an ionized gas, in which a certain proportion of electrons are free, rather than being bound to an atom or molecule.

Plasma may refer to: Blood plasma, the yellow-colored liquid component of blood, in which blood cells are suspended; Plasma (physics), an ionized gas, the fourth state of matter

Plasma.com: Free Shipping on Plasma HDTV screens and LCD Televisions for the Home Theater. HDTV plasma displays by Pioneer, Panasonic, Sony, Hitachi, and NEC

solids: condensed matter, compact (nuclear) liquids, neutral gas: fluid (Navier-Stokes)** systems : plasmas: electromagnetic (Maxwell-Boltzmann)** systems

CNC Plasma Cutters used for cutting artistic metal shapes and custom parts.