Longman Dictionary of Contemporary English homepage

Date: 1800-1900
Language: German
Origin: entropie, from Greek trepein 'to turn, change'

entropy

 noun
     
en‧tro‧py [uncountable] technical
a lack of order in a system, including the idea that the lack of order increases over a period of time
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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