noun. the biological root and growth of a living being from fertilization of the egg cell to death. Commonly referred to as ontogenesis.

ONTOGENY: "Ontogeny is not a common course of study for any degree program."
Cite this page: N., Pam M.S., "ONTOGENY," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/ontogeny/ (accessed July 14, 2020).