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negentropy.

The difference between the entropy of a system and the maximum possible entropy of the same system.

10 characters4 syllables approx.English language

Meaning & usage

noun/ˌnɛɡˈɛntɹɒpi/Received-Pronunciation/ˌnɛɡˈɛntɹəpi/General-American
  1. The difference between the entropy of a system and the maximum possible entropy of the same system.

    countable · uncountable
  2. The difference between the entropy of a probability distribution and the maximum possible entropy of the same probability distribution.

    countable · uncountable
Where this word comes from

From nega- + entropy. A blend of negative + entropy, coined by the French physicist Léon Brillouin (1889–1969). The term negative entropy was introduced by the Austrian physicist Erwin Schrödinger (1887–1961) in his book What is Life? (1944, based on lectures delivered in February 1943).

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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.

Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.