• synonyms


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

Examples from the Web for agenesis

Historical Examples of agenesis

  • Could not agenesis have resulted from the concurrence of this tendency with mechanical causes?

    The Catholic World, Vol. X, October 1869


British Dictionary definitions for agenesis


  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

agenesis in Medicine


  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.