D defs.my
Entry 1 sense Webster, 1913

Ontogenesis

/ŏn′tō-jĕn′ĭ-sĭs/ · On·to·gen·e·sis · IPA
01 n. The history of the individual development of an organism; the sequence of events involved in the development of an organism; the history of…
  1. 1.
    The history of the individual development of an organism; the sequence of events involved in the development of an organism; the history of the evolution of the germ; the development of an individual organism, -- in distinction from phylogeny, or evolution of the tribe. Called also henogenesis, henogeny.(Biol.) Also: henogenesis, henogeny