The Collaborative International Dictionary of English v.0.48:

Sporogony \Spo*rog"o*ny\ (sp[-o]*r[o^]g"[-o]*n[y^]), n. [Spore +
   root of Gr. ? to be born.] (Zool.)
   The growth or development of an animal or a zooid from a
   nonsexual germ.
   [1913 Webster]