Top Definition
1.)One who practices using/manipulating discharged neural signals (aka energy. aka psi. aka chi.. . many others)to preform various tasks. (Rarely combat. Also for meditation, entertainment, healing, cooling, etc.)

2.)A type of car.
1.)The psion formed a ball of energy to help themselfs focus.

2.) The pontiac psion blah blah blah. . . .
by Cloner Stive October 14, 2004
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