absolute zero — English Dictionary

Noun

1. The coldest possible temperature, equivalent to zero on the Kelvin scale, or approximately −273.15 °C, −459.67 °F; a total absence of heat; the temperature at which the motion of all molecules would cease.

2. A person or thing of absolutely no consequence.

   Usage

   • Derogatory
   • Slang

Noun

1. (cryogenics) the lowest temperature theoretically attainable (at which the kinetic energy of atoms and molecules is minimal); 0 Kelvin or -273.15 centigrade or -459.67 Fahrenheit

   Broader terms

   temperature