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Dictionary

psi

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

psi

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

psi

pounds per square inch. Also,p.s.i.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

pshaw

psia

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