Associations to the word «Psi»

Wiktionary

PSI, noun. (countable) The twenty-third letter of Classical and Modern Greek and the twenty-fifth letter of Old and Ancient Greek.
PSI, noun. (uncountable) (parapsychology) A form of psychic energy.
PSI FUNCTION, noun. (mathematics) A function of a complex variable obtained by differentiating the logarithm of a gamma function; the digamma function
PSI FUNCTION, noun. (physics) The Schrödinger wave function
PSI FUNCTIONS, noun. Plural of psi function

Dictionary definition

PSI, noun. A unit of pressure.
PSI, noun. The 23rd letter of the Greek alphabet.

Wise words

To use the same words is not a sufficient guarantee of understanding; one must use the same words for the same genus of inward experience; ultimately one must have one's experiences in common.
Friedrich Nietzsche