Webster’s Revised Unabridged Dictionary · 1913
Physiogeny
Phys′i·og′e·ny (·ŏj′ē·ny̆), n. [Gr. φύσις nature + root of γίγνεσθαι to be born.] (Biol.) 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.