1- Any unclassified energy having an effect on the interface between mind, matter, and/or spirit. This is sometimes incorrectly used as a synonym for "Radionics". Derived from Greek "Psyche" which is both mind and spirit, and "Tronics", meaning instrumentation. The term was coined in France during the late '60's. The first Psychotronics Conference was in Prague in 1972.

2. Sometimes used as a slang term meaning unusual and awesome.