absolute zero(redirected from 0 Kelvin)
Also found in: Thesaurus, Medical, Encyclopedia.
The theoretical temperature at which substances possess no thermal energy, equal to 0 K, -273.15°C, or -459.67°F.
(General Physics) the lowest temperature theoretically attainable, at which the particles constituting matter would be in the lowest energy states available; the zero of thermodynamic temperature; zero on the International Practical Scale of Temperature: equivalent to –273.15°C or –459.67°F
the temperature of −273.16°C (−459.69°F), the hypothetical point at which all molecular activity ceases.
The lowest possible temperature of matter, at which all molecules stop moving. Absolute zero is equal to -459.67°F or -273.15°C.
Switch to new thesaurus
|Noun||1.||absolute zero - (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|
temperature - the degree of hotness or coldness of a body or environment (corresponding to its molecular activity)