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[awr-guh-noh-jen-uh-sis, awr-gan-oh‐] /ˌɔr gə noʊˈdʒɛn ə sɪs, ɔrˌgæn oʊ‐/
Biology. the origin and development of an organ.
Also, organogeny
[awr-guh-noj-uh-nee] /ˌɔr gəˈnɒdʒ ə ni/ (Show IPA)
1855-60; organo- + -genesis
Related forms
[awr-guh-noh-juh-net-ik, awr-gan-oh‐] /ˌɔr gə noʊ dʒəˈnɛt ɪk, ɔrˌgæn oʊ‐/ (Show IPA),
organogenetically, adverb Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for organogenetically


the formation and development of organs in an animal or plant
Also called organogeny (ˌɔːɡənˈɒdʒənɪ). the study of this process
Derived Forms
organogenetic (ˌɔːɡənəʊdʒɪˈnɛtɪk) adjective
organogenetically, adverb
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
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organogenetically in Medicine

organogenesis or·gan·o·gen·e·sis (ôr'gə-nō-jěn'ĭ-sĭs, ôr-gān'ə-)
The formation and development of the organs of living things. Also called organogeny.

or'gan·o·ge·net'ic (-jə-nět'ĭk) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia Article for organogenetically


in embryology, the series of organized integrated processes that transforms an amorphous mass of cells into a complete organ in the developing embryo. The cells of an organ-forming region undergo differential development and movement to form an organ primordium, or anlage. Organogenesis continues until the definitive characteristics of the organ are achieved. Concurrent with this process is histogenesis; the result of both processes is a structurally and functionally complete organ. The accomplishment of organogenesis ends the period during which the developing organism is called an embryo and begins the period in which the organism is called a fetus. See also histogenesis.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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