heterogamy

Webster's Dictionary (GCIDE)

Heterogamy \Het`er*og"a*my\, n. [See Heterogamous.] [1913 Webster]

1.(Bot.) The process of fertilization in plants by an indirect or circuitous method; -- opposed to orthogamy. [1913 Webster]

2.(Biol.) That form of alternate generation in which two kinds of sexual generation, or a sexual and a parthenogenetic generation, alternate; -- in distinction from metagenesis, where sexual and asexual generations alternate. --Claus & Sedgwick. [1913 Webster]