adj \in-ˈd(y)ü-sə-bəl\

Definition of INDUCIBLE

: capable of being formed, activated, or expressed in response to a stimulus especially of a molecular kind: as a : formed by a cell in response to the presence of its substrate <inducible enzymes>—compare constitutive 1a b : activated or undergoing expression only in the presence of a particular molecule <an inducible promoter that turns on its genes only in the presence of lactose>
in·duc·ibil·i·ty \in-ˌd(y)ü-sə-ˈbil-ət-ē\ noun, plural in·duc·ibil·i·ties

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