or·gan·o·gen·e·sis 
(ôr′gə-nō-jĕnĭ-sĭs, ôr-găn′ə-)
(ôr′gə-nō-jĕnĭ-sĭs, ôr-găn′ə-)n. pl. or·gan·o·gen·e·ses (-sēz′)
The formation and development of the organs of living things.
or′gan·o·ge·netic (-jə-nĕtĭk) adj.
or′gan·o·ge·neti·cal·ly adv.