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ontogeny

[on-toj-uh-nee] /ɒnˈtɒdʒ ə ni/
noun, Biology.
1.
the development or developmental history of an individual organism.
Also, ontogenesis
[on-tuh-jen-uh-sis] /ˌɒn təˈdʒɛn ə sɪs/ (Show IPA)
.
Compare phylogeny.
Origin of ontogeny
1870-1875
First recorded in 1870-75; onto- + -geny
Related forms
ontogenetic
[on-tuh-juh-net-ik] /ˌɒn tə dʒəˈnɛt ɪk/ (Show IPA),
ontogenetical, ontogenic, adjective
ontogenetically, ontogenically, adverb
ontogenist, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for ontogenesis
Historical Examples
  • But ontogenesis would have furnished us with facts no less cogent.

    Creative Evolution Henri Bergson
  • It studies man from two different points of view: his development (ontogenesis), and his variations.

    Pedagogical Anthropology Maria Montessori
  • The ontogenesis of any given living organism is a short, condensed recapitulation of its ancestral history or of its phylogenesis.

    The Last Link Ernst Haeckel
  • It summarises the history of species; ontogenesis, we are told, reproduces phylogenesis.

  • This exceedingly important larval form, the "gastrula," makes its appearance in the ontogenesis of all tribes of animals.

    Was Man Created? Henry A. Mott
  • It is naturally no easy matter to trace the ontogenesis of the herd instinct.

British Dictionary definitions for ontogenesis

ontogeny

/ɒnˈtɒdʒənɪ/
noun
1.
the entire sequence of events involved in the development of an individual organism Compare phylogeny
Derived Forms
ontogenic (ˌɒntəˈdʒɛnɪk), ontogenetic (ˌɒntədʒɪˈnɛtɪk) adjective
ontogenically, ontogenetically, 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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Word Origin and History for ontogenesis

ontogeny

n.

"development of an individual," 1872, from onto- + -geny. Related: Ontogenic; ontogenesis.

Online Etymology Dictionary, © 2010 Douglas Harper
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ontogenesis in Medicine

ontogenesis on·to·gen·e·sis (ŏn'tō-jěn'ĭ-sĭs)
n.
See ontogeny.

ontogeny on·tog·e·ny (ŏn-tŏj'ə-nē)
n.
The origin and development of an individual organism from embryo to adult. Also called ontogenesis.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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ontogenesis in Science
ontogeny
  (ŏn-tŏj'ə-nē)   
The origin and development of an individual organism from embryo to adult.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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