phylogenesis noun. [fʌɪlǝ(ʊ)'dʒɛnɪsɪs] L19.
[from Greek phulon, phulē tribe, race + -O- + -GENESIS.]
Biology. The evolutionary development of a species or other group of organisms through a succession of forms. Also, the evolutionary development of a particular (esp. anatomical) feature of an organism. Cf. ONTOGENESIS.

■ phyloge'netic adjective L19.

■ phyloge'netical adjective (rare) L19.

■ phyloge'netically adverb with reference to or as regards phylogenesis L19.

■ phyloge'netics noun the branch of biology that deals with phylogenesis, esp. the factors influencing its course M20.

[TahlilGaran] English Dictionary ▲