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psi

Line breaks: psi
Pronunciation: /psʌɪ
 
, sʌɪ
 
/

Definition of psi in English:

noun

1The twenty-third letter of the Greek alphabet (Ψ, ψ), transliterated as ‘ps’.
Example sentences
  • Available in three sizes and able to pump up to a 160 psi max pressure, the pump will be available in September.
  • Variable psi, used within the AHCPR guidelines, can help improve patient comfort.
  • The psi / word association was randomly chosen to be either the first or second of these experiments.
1.1 (Psi) [followed by Latin genitive] Astronomy The twenty-third star in a constellation: Psi Aquarii
More example sentences
  • In 1672, when Mars was in the vicinity of the three Psi stars of Aquarius, the time was ripe for obtaining the first reliable parallax of Mars.
2 [mass noun] Supposed parapsychological or psychic faculties or phenomena: [as modifier]: psi powers
More example sentences
  • Is psi only a laboratory curiosity, or is it the universal connecting link among all of us?

Origin

Greek.

Definition of psi in:

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