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psi

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Psi is the twenty third letter of the Greek alphabet.

(noun)

An example of psi is Ψ.

Psi is the twenty third letter of the Greek alphabet.

(noun)

An example of psi is the average human blood pressure of 2.32 psi/1.55 psi which equates to 120/80.

See psi in Webster's New World College Dictionary

noun

the twenty-third letter of the Greek alphabet (Ψ, ψ)

Origin: LGr < Gr psei

adjective

of or having to do with psychic or paranormal abilities or phenomena

noun

such abilities or phenomena collectively

pounds per square inch

See psi in American Heritage Dictionary 4

noun

The 23rd letter of the Greek alphabet. See Table at alphabet.

Origin:

Origin: Middle English

Origin: , from Late Greek

Origin: , from Greek psei

noun

Parapsychological phenomena or abilities considered as a group.

Origin:

Origin: Shortening and alteration of parapsychological

abbreviation

pounds per square inch

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