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Meaning of cross-fertilization

cross-fer•ti•li•za•tion

Pronunciation: (krôs'fûr"tl-u-zā'shun, kros'-), [key]
— n.
  1. the fertilization of an organism by the fusion of an egg from one individual with a sperm or male gamete from a different individual.
  2. fertilization of the flower of one plant by a gamete from the flower of a closely related plant (opposed to self-fertilization).
  3. (not in technical use) cross-pollination.
  4. interaction or interchange, as between two or more cultures, fields of activity or knowledge, or the like, that is mutually beneficial and productive: a cross-fertilization of scientific and technical disciplines.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.