Definition of: apogamy

(ə·pog′ə·mē) noun
1. Bot. a Absence of the sexual function in plants. b The development of the mature plant from the prothallium without intervention of sexual organs, as in certain of the higher cryptogams.
2. Biol. In evolution, the mating and interbreeding of segregated groups that do not differ significantly in character from other groups of their kind. [<APO- + Gk. gamos marriage]
—ap·o·gam·ic (ap′ə·gam′ik) adjective
—a·pog′a·mous adjective