— ontogenetic /on'teuh jeuh net"ik/ , ontogenetical, ontogenic , adj. — ontogenetically, ontogenically , adv. — ontogenist , n.
/on toj"euh nee/ , n. Biol.
the development or developmental history of an individual organism.
Also, ontogenesis /on'teuh jen"euh sis/ . Cf. phylogeny .
[ 1870-75; ONTO- + -GENY ]