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psi: Meaning and Definition of

psi

Pronunciation: (sī, psī), [key]
— pl. psis.
  1. the 23rd letter of the Greek alphabet (&PSgr;, &psgr;).
  2. the group of consonant sounds represented by this letter.

psi

Pronunciation: (sī), [key]
— n.
  1. any purportedly psychic phenomenon, as psychokinesis, telepathy, clairvoyance, or the like. Cf.

psi

Pronunciation: [key]
  1. pounds per square inch.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also:
  • psi (Thesaurus)
pshaw psia
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