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Pronunciation: ev'o-lu'shun


  1. A continuing process of change from one state, condition, or form to another.
  2. A progressive distancing between the genotype and the phenotype in a line of descent.
  3. The liberation of a gas or heat in the course of a chemical or enzymatic reaction.

[L. e-volvo, pp. -volutus, to roll out]

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.