psi


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psi 1

 (sī, psī, psē)
n.
The 23rd letter of the Greek alphabet. See Table at alphabet.
[Middle English, from Late Greek, from Greek psei.]

psi 2

 (sī)
n.
Parapsychological phenomena or abilities considered as a group.
[Shortening and alteration of parapsychological.]

psi 3

abbr.
pounds per square inch
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

psi

abbreviation for
(Units) pounds per square inch

psi

(psaɪ)
n
1. (Letters of the Alphabet (Foreign)) the 23rd letter of the Greek alphabet (Ψ, ψ), a composite consonant, transliterated as ps
2. (Psychology)
a. paranormal or psychic phenomena collectively
b. (as modifier): psi powers.
3. (Alternative Belief Systems)
a. paranormal or psychic phenomena collectively
b. (as modifier): psi powers.
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

psi1

(saɪ, psaɪ)

n., pl. psis.
the 23rd letter of the Greek alphabet (Ψ, ψ).
[1350–1400; Middle English < Greek pseî]

psi2

(saɪ)

adj.
of or pertaining to parapsychological manifestations or abilities.
[1940–45; shortening of psychic or parapsychic]

psi

or p.s.i.,

pounds per square inch.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

PSI

Pounds per square inch: a unit for measuring pressure. One PSI equals the pressure resulting from a force of one pound force acting over an area of one square inch. See pound.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.psi - a unit of pressure
pounds per square inch
pressure unit - a unit measuring force per unit area
2.psi - the 23rd letter of the Greek alphabet
Greek alphabet - the alphabet used by ancient Greeks
alphabetic character, letter of the alphabet, letter - the conventional characters of the alphabet used to represent speech; "his grandmother taught him his letters"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
psi
psi

psi

1 ABBR =pounds per square inch → kg/cm²

psi

2 [saɪ] NPL (= psychic phenomena) → fenómenos mpl paranormales
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

psi

n no pl
(= letter) → Psi nt
(= psychic phenomena) → Psi nt
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
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