PSI


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psi

(mechanics)

Psi

(religion, spiritualism, and occult)

Psi, the twenty-third letter of the Greek alphabet, was coined by Dr. Joseph Banks Rhine as a term for extrasensory perception. It later came to include psychokinesis and other paranormal phenomena. It is sometimes used as a short form of “psychic,” as in “psi ability” meaning “psychic ability.”

Sources:

Bletzer, June G.: The Encyclopedia Psychic Dictionary. Lithia Springs: New Leaf, 1998
Holroyd, Stuart: The Supernatural: Minds Without Boundaries. London: Aldus, 1975

psi

Abbr. for “pounds per square inch.”

PSI

References in periodicals archive ?
High-pressure-rated RTD thermometer probes are precision platinum units with maximum temperature rating of 300 F and maximum pressure rating of 7500 psi.
Achieve 1605 is a 32-MFR GP grade With HDT of 201 F at 66 psi and flex modulus of 180,000 psi.
5% or [+ or -]1% accuracy at 0-750 F, units measure pressure ranges from 1000 to 15,000 psi.