Definition, Meaning & Synonyms

heterology

Noun

/ˌhɛtəˈrɒlədʒi/

Definition

Heterology refers to the existence of different structures or functions in related organisms, or the quality of being unlike in nature or character.

Examples

The heterology of the animal’s limbs can be observed when comparing the forelimbs of mammals to the wings of birds.
In evolutionary biology, heterology helps explain how different species develop unique adaptations to their environments.
Heterology in genetics might refer to variations in the genetic sequences among organisms that lead to different phenotypes.

Meaning

The term is often used in biology and anatomy to describe the differences between organs or features that have similar origins but serve distinct purposes. It can also refer to differences within the same species.