One of the mysteries of the English language finally explained.
1The twenty-third letter of the Greek alphabet (Ψ, ψ), transliterated as ‘ps’.
- ‘Variable psi, used within the AHCPR guidelines, can help improve patient comfort.’
- ‘Quantam has already certified a 10,000 psi tank, which in theory would double that.’
- ‘Numbers one hundred to nine hundred: Rho, Sigma, Tau, Upsilon, Phi, Chi, Psi, Omega, Sampi.’
- ‘Available in three sizes and able to pump up to a 160 psi max pressure, the pump will be available in September.’
- ‘The psi / word association was randomly chosen to be either the first or second of these experiments.’
- ‘However this may be replaced later in a few of the fleet cars by a 10,000 psi tank.’
- 1.1Astronomy followed by Latin genitive The twenty-third star in a constellation.‘Psi Aquarii’
- ‘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.’
2mass noun Supposed parapsychological or psychic faculties or phenomena.as modifier ‘psi powers’
- ‘Is psi only a laboratory curiosity, or is it the universal connecting link among all of us?’
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