Definition of phylogenesis in English:

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Pronunciation: /ˌfīlōˈjenəsəs/


The evolutionary development and diversification of a species or group of organisms, or of a particular feature of an organism. Compare with ontogenesis.
Example sentences
  • Later, during phylogenesis, phagocytosis of other prokaryotic cell types allowed the acquisition of plastids and mitochondria to form the contemporary eukaryotic cells.
  • Ontogenesis, we were taught, repeats phylogenesis - or, if you've been out of school too long, the development of the individual organism reiterates the evolution of the species.


Late 19th century: from Greek phulon, phulē 'race, tribe' + genesis.

For editors and proofreaders

Syllabification: phy·lo·gen·e·sis

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