Advertisement

Advertisement

psi

1

[ sahy, psahy ]

noun

, plural psis.
  1. the 23rd letter of the Greek alphabet (Ψ, ψ).
  2. the group of consonant sounds represented by this letter.


psi

2

[ sahy ]

noun

  1. any purportedly psychic phenomenon, as psychokinesis, telepathy, clairvoyance, or the like.

psi

3
or p.s.i.
  1. pounds per square inch.

psi

1

/ psaɪ /

noun

  1. the 23rd letter of the Greek alphabet (Ψ, ψ), a composite consonant, transliterated as ps
    1. paranormal or psychic phenomena collectively
    2. ( as modifier )

      psi powers

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


psi

2

abbreviation for

  1. pounds per square inch
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Discover More

Word History and Origins

Origin of psi1

1350–1400; Middle English < Greek pseî

Origin of psi2

1940–45; shortening of psychic or parapsychic
Discover More

Example Sentences

There are two sets of steps leading from the front doors of Phi Kappa Psi house.

The bonds of Phi Kappa Psi brotherhood were too strong to break.

The Charlottesville Police did indeed have jurisdiction over the Phi Kappa Psi house.

I have not sued Phi Kappa Psi, the University of Virginia, or any of the individuals involved.

Will PSI (private sector involvement) become common in future bailouts?

Certainly it had protected him on Antar, and with equal certainty it must have been responsible for the psi powers he possessed.

We know the Auerbach cylinder will store a psi impulse, but we don't know how.

I didn't need any psi talent for that, it was an inevitable part of his pattern.

What we really lacked in psi was the ability to orient its phenomena.

I could say psi was a flow of positrons, and it would mean as much.

Advertisement

Advertisement

Advertisement

Advertisement


pshawpsia