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

OTHER WORDS FROM ontogeny

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 of ontogeny

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

Medical definitions for ontogenesis (1 of 2)

ontogenesis
[ ŏn′tō-jĕnĭ-sĭs ]

n.

ontogeny

Medical 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.

Scientific 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.