on·​tog·​e·​ny | \än-ˈtä-jə-nē \

Definition of ontogeny 

: the development or course of development especially of an individual organism

Examples of ontogeny in a Sentence

Recent Examples on the Web

Having a big nose: structure, ontogeny, and function of the elephant seal proboscis. Darren Naish, Scientific American Blog Network, "Incredible Elephant Seals, Part 1," 3 June 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ontogeny.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of ontogeny

1872, in the meaning defined above

History and Etymology for ontogeny

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The first known use of ontogeny was in 1872

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More Definitions for ontogeny


on·​tog·​e·​ny | \än-ˈtäj-ə-nē \
plural ontogenies

Medical Definition of ontogeny 

: the development or course of development of an individual organism

called also ontogenesis

— compare phylogeny sense 2

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Rhyming Dictionary: Words that rhyme with ontogeny

Britannica.com: Encyclopedia article about ontogeny

Comments on ontogeny

What made you want to look up ontogeny? Please tell us where you read or heard it (including the quote, if possible).


a nest or breeding place

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