Akademik

propagation
The act of propagating.

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prop·a·ga·tion .präp-ə-'gā-shən n the act or action of propagating: as
a) increase (as of a kind of organism) in numbers <\propagation of a pure culture of bacteria>
b) the spreading or transmission of something <\propagation of a nerve impulse>

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prop·a·ga·tion (prop″ə-gaґshən) reproduction (def. 2). propagative adj

Medical dictionary. 2011.