Absolute zero

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Absolute zero

(Science: chemistry, physics) this is the lowest possible temperature (0 kelvin, -273.15 degrees celsius, -459.67 degrees Fahrenheit). at this temperature, all molecular motion stops. (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.Thought to be the coldest possible temperature that any substance can exist at, -273 degrees celsius. At this temperature atoms contain no heat Energy.