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ontogeny Line breaks: on|togeny
Pronunciation: /ɒnˈtɒdʒəni/

Definition of ontogeny in English:


[mass noun]
1The branch of biology that deals with ontogenesis. Compare with phylogeny.
Example sentences
  • However helpful this removal can be, there needs also to be a cohesive model of homologies that can draw upon the integration of morphology, ontogeny, and paleontology.
  • Given the interest in comparative approaches in biology, new examples of embryonic ontogeny of osmoregulation should be investigated in species with internal or external development.
  • His finding of parallels between ontogeny, paleontology, and morphology was rapidly adopted by biologists like Haeckel and used to support evolution.
1.1 another term for ontogenesis.
Example sentences
  • Exceptions to the rule may provide insight into the biology of the animals' ontogeny and life cycle.
  • These models stress the dynamics during ontogeny of the cellular components of growth and morphogenesis.
  • Selection may act to modify ontogeny and ultimately determine morphology and function.


Late 19th century: from Greek ōn, ont- 'being' + -geny.



Pronunciation: /ɒntəˈdʒɛnɪk/
Example sentences
  • Although these issues have been addressed in several plant species, very few studies exist for tree species, especially those addressing the genetic basis of phenotypic plasticity and ontogenic allometry.
  • The second approach consists of measuring biomechanical parameters in different samples to demonstrate the effect of ontogenic, genetic or environmental conditions.
  • Alternatively, therefore, the expression of hormone receptors in the ovarian-like stroma of cystic nephroma may be related to female gender and smooth muscle differentiation rather than ontogenic similarity to ovarian stroma.


Pronunciation: /ɒntəˈdʒɛnɪk(ə)li/

Definition of ontogeny in:

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Pronunciation: ɪˈnɒkjʊəs
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