The Collaborative International Dictionary
Diphygenic
Diphygenic \Diph`y*gen"ic\ (-j[e^]n"[i^]k), a. [Gr. difyh`s of double form + -genic.] (Zo["o]l.) Having two modes of embryonic development.
Wiktionary
diphygenic
a. (context zoology English) Having two modes of embryonic development.