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Webster 1913 Edition

Noun.

[Gr. [GREEK] other + [GREEK] marriage.]

(Bot.)

Fertilization of the pistil of a plant by pollen from another of the same species; cross-fertilization.

allogamy ‎(uncountable)

(biology) The fertilization of an ovum from one individual with the spermatozoa of another; cross-fertilization

fertilization