catagenesis

[kat-uh-jen-uh-sis]

noun Biology.

the retrogressive evolution of a species.Compare anagenesis(def 1).

Origin of catagenesis

First recorded in 1880–85; cata- + genesis
Related formscat·a·ge·net·ic [kat-uh-juh-net-ik] /ˌkæt ə dʒəˈnɛt ɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

catagenesis in Medicine

catagenesis

[kăt′ə-jĕnĭ-sĭs]

n.

involution
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.