Webster's Revised Unabridged Dictionary · 1913

Physiogeny

Physiogeny (fiz`i*oj"e*ny) , noun

[Greek fy`sis nature + root of gi`gnesqai to be born.]

(Biology) The germ history of the functions, or the history of the development of vital activities, in the individual, being one of the branches of ontogeny. See Morphogeny. — Haeckel