Psi (letter)
Psi (Ψ ψ) is the 23rd letter of the Greek alphabet and has a numeric value of 700.
It has come to be a symbol for psychology-related topics, and has also been used as a shorthand for supposed psychic abilities or powers.
See also PSI (pounds per square inch).
Psi was also a character on the formerly popular game and television series, Pokémon.
The lower-case letter ψ is used as the symbol for:
Referenced By
Greek Alphabet | Greek letter
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