cross-fertilization
noun
cross-fer·til·i·za·tion
ˈkrȯs-ˌfər-tə-lə-ˈzā-shən
1
a
: fertilization in which the gametes are produced by separate individuals or sometimes by individuals of different kinds
2
: interchange or interaction (as between different ideas, cultures, or categories) especially of a broadening or productive nature
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Merriam-Webster unabridged
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