Definition of phylogenetical in US English:

phylogenetical

adjective

Biology
  • Phylogenetic.

Origin

Late 19th century; earliest use found in Haeckel's Evolution of Man. From phylo- + genetical, after German phylogenetisch.

Pronunciation

phylogenetical

/ˌfʌɪlə(ʊ)dʒɪˈnɛtɪkl/