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

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.

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.

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.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.psi - a unit of pressure
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"
Translations
psi
psi

psi

1 ABBR =pounds per square inchkg/cm²

psi

2 [saɪ] NPL (= psychic phenomena) → fenómenos mpl paranormales

psi

n no pl
(= letter)Psi nt
(= psychic phenomena)Psi nt
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