From Longman Dictionary of Contemporary EnglishRelated topics: Temperatureabsolute zeroˌabsolute ˈzero noun [uncountable]TMTthe lowesttemperature that is believed to be possibleExamples from the Corpusabsolute zero• We're at one millionth of a degreeaboveabsolute zero.• The catch is that it operates only at temperatures just above absolute zero.• On the absolutescale of temperature, 0 K is called absolute zero.• This corresponds to a temperature of -273°C or 0 K. This is the temperature called absolute zero.• Nearabsolute zero, however, molecules have much less thermalenergy.• All matter at temperatures above that of absolute zeroemits infrared radiation.• Kobe Steelsupplied the liquid-helium refrigerator for super-chilling the magnetsclose to absolute zero.• And those which are work only at temperatures close to absolute zero.