Definition of phylogenesis in English:

phylogenesis

noun

Biology
  • [mass noun] The evolutionary development and diversification of a species or group of organisms, or of a particular feature of an organism.

    Compare with ontogenesis
    • ‘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.’

Origin

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

Pronunciation:

phylogenesis

/ˌfʌɪlə(ʊ)ˈdʒɛnɪsɪs/