The negentropy, also negative entropy or syntropy or extropy or entaxy[1], of a living system is the entropy that it exports to keep its own entropy low; it lies at the intersection of entropy and life. The concept and phrase "negative entropy" were introduced by Erwin Schrödinger in his 1944 popular-science book What is Life?[2] Later, Léon Brillouin shortened the phrase to negentropy,[3][4] to express it in a more "positive" way: a living system imports negentropy and stores it.[5] In 1974, Albert Szent-Györgyi proposed replacing the term negentropy with syntropy. That term may have originated in the 1940s with the Italian mathematician Luigi Fantappiè, who tried to construct a unified theory of biology and physics. Buckminster Fuller tried to popularize this usage, but negentropy remains common.

II zakon termodinamike
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Schrödinger: entropija je mjera atomskog nereda. Negativna entropija je kakvoća ili stupanj ukupne energije, odnosno reda u sustavu.

http://mAko je entropija
S = k log D,
onda je negativna entropija
N= k ln 1/D
Informacija i negentropija