ontogeny

[ on-toj-uh-nee ]
/ ɒnˈtɒdʒ ə ni /

noun Biology.

the development or developmental history of an individual organism.
Also on·to·gen·e·sis [on-tuh-jen-uh-sis] /ˌɒn təˈdʒɛn ə sɪs/.
Compare phylogeny.

Origin of ontogeny

First recorded in 1870–75; onto- + -geny

Related forms

on·to·ge·net·ic [on-tuh-juh-net-ik] /ˌɒn tə dʒəˈnɛt ɪk/, on·to·ge·net·i·cal, on·to·gen·ic, adjectiveon·to·ge·net·i·cal·ly, on·to·gen·i·cal·ly, adverbon·tog·e·nist, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for ontogenesis

British Dictionary definitions for ontogenesis

ontogeny

ontogenesis (ˌɒntəˈdʒɛnɪsɪs)

/ (ɒnˈtɒdʒənɪ) /

noun

the entire sequence of events involved in the development of an individual organismCompare phylogeny

Derived Forms

ontogenic (ˌɒntəˈdʒɛnɪk) or ontogenetic (ˌɒntədʒɪˈnɛtɪk), adjectiveontogenically or 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

Medicine definitions for ontogenesis (1 of 2)

ontogenesis

[ ŏn′tō-jĕnĭ-sĭs ]

n.

ontogeny

Medicine definitions for ontogenesis (2 of 2)

ontogeny

[ ŏn-tŏjə-nē ]

n.

The origin and development of an individual organism from embryo to adult.ontogenesis
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for ontogenesis

ontogeny

[ ŏn-tŏjə-nē ]

The origin and development of an individual organism from embryo to adult.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.