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Short "hint"

n. - The 23rd letter of the Greek alphabet; A unit of pressure.

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Usage examples (36)
  • The term psi was coined as a neutral term for psychic phenomena in 1942 by British psychologist Robert Thouless.
  • Goldhaber proposed that it be called a psi particle because its track resembled the Greek letter.
  • This one is by Erich Hückel, and speaks about Erwin Schrödinger and his wavefunction (called psi).
  • It was obvious that these were the so-called 'psi' troops of the Baalols.
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