ONTOGENY
growth, growing, maturation, development, ontogeny, ontogenesis
(noun) (biology) the process of an individual organism growing organically; a purely biological unfolding of events involved in an organism changing gradually from a simple to a more complex level; “he proposed an indicator of osseous development in children”
Source: WordNet® 3.1
Etymology
Noun
ontogeny (countable and uncountable, plural ontogenies)
ontogenesis
Synonyms
• ontogenesis
Source: Wiktionary
On`to*gen"e*sis, On*tog"e*ny, n. Etym: [See Ontology, and Genesis.]
(Biol.)
Definition: The history of the individual 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.
Source: Webster’s Unabridged Dictionary 1913 Edition