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The Collaborative International Dictionary
Aetheogamous

Aetheogamous \A*["e]`the*og"a*mous\, a. [Gr. ? unusual ('a priv. + ? custom) + ? marriage.] (Bot.) Propagated in an unusual way; cryptogamous.

Wiktionary
aetheogamous

a. (context botany English) Of the nature of an aetheogam.