
In the history of thermodynamics, disgregation was defined in 1862 by Rudolf Clausius as the magnitude of the degree in which the molecules of a body are separated from each other. This term was modeled on certain passages in French physicist Sadi Carnot`s 1824 paper On the Motive Power of Fire that characterized the `transformations` of `work...
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http://en.wikipedia.org/wiki/Disgregation

separation; scattering
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http://phrontistery.info/d.html

• (n.) The process of separation, or the condition of being separate, as of the molecules of a body.
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http://thinkexist.com/dictionary/meaning/disgregation/
Dis`gre·ga'tion noun (Physiol.) The process of separation, or the condition of being separate, as of the molecules of a body.
Found on
http://www.encyclo.co.uk/webster/D/84
No exact match found.