anagenesis

[an-uh-jen-uh-sis]
noun
1.
Biology. the progressive evolution of a species. Compare catagenesis.
2.
Physiology. the regeneration of tissue.

Origin:
1875–80; < Neo-Latin; see ana-, genesis

anagenetic [an-uh-juh-net-ik] , anagenetical, adjective
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So much for one part of the evolutionary process, known as anagenesis, during which a single species is transformed.
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