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agenesis

[ey-jen-uh-sis]
noun Pathology.
  1. absence of or failed development of a body part.
  2. sterility; impotence; barrenness.
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Also a·ge·ne·sia [ey-juh-nee-zhuh, -zhee-uh, -see-uh] /ˌeɪ dʒəˈni ʒə, -ʒi ə, -si ə/.

Origin of agenesis

From New Latin, dating back to 1850–55; see origin at a-6, genesis
Related formsa·ge·net·ic [ey-juh-net-ik] /ˌeɪ dʒəˈnɛt ɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for agenetic

agenesis

noun
  1. (of an animal or plant) imperfect development
  2. impotence or sterility
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Derived Formsagenetic (ˌeɪdʒəˈnɛtɪk), adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

agenetic in Medicine

agenesis

(ā-jĕnĭ-sĭs)
n.
  1. Absence or incomplete development of an organ or body part.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.