Definition of phylogerontic in English:

phylogerontic

adjective

Biology
historical
  • Of or relating to a late stage in the evolutionary history of a group of organisms.

Origin

Late 19th century; earliest use found in Proceedings of the Boston Society of Natural History. From phylo- + gerontic.

Pronunciation

phylogerontic

/ˌfʌɪlə(ʊ)dʒəˈrɒntɪk/