in·cu·bate verb \ˈiŋ-kyə-ˌbāt, ˈin-\
: to maintain (as eggs, embryos of animals, or bacteria) under prescribed and usually controlled conditions favorable for hatching or development especially in an incubator
: to maintain (a chemically active system) under controlled conditions for the development of a reaction
: to undergo incubation <the cultures incubated for five days>
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