psi

• Nom qui peut désigner une unité de pression (livres par pouce carré) ou la 23e lettre de l'alphabet grec.

A noun that can refer to a unit of pressure (pounds per square inch) or the 23rd letter of the Greek alphabet.

1. B2formal

   A unit of pressure equal to one pound of force per square inch.

   psi (unité de pression)

   • The tire pressure should be 32 psi.
   • The compressor can deliver up to 150 psi.
   • Check the psi rating before using the air pump.

2. Greek letterB2formal

   The 23rd letter of the Greek alphabet, often used in mathematics and science.

   psi (lettre grecque)

   • The symbol psi is used in quantum mechanics.
   • Psi is the 23rd letter of the Greek alphabet.
   • In psychology, psi is sometimes used to denote psychic phenomena.