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Definition of kelvin noun from the Oxford Advanced American Dictionary

 

kelvin

 noun
noun
NAmE//ˈkɛlvən//
 
(abbreviation K) (pl. kelvin or kelvins)
 
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a unit for measuring temperature. One kelvin is equal to one degree Celsius, but the Kelvin scale starts at absolute zero and water freezes at 273.15 kelvin
See the Oxford Advanced Learner's Dictionary entry: kelvin

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