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adjective con·sti·tu·tive \ˈkän(t)-stə-ˌt(y)üt-iv, kən-ˈstich-ət-iv\

Medical Definition of constitutive

  1. 1a:  of, relating to, or being an enzyme or protein produced in relatively constant amounts in all cells of an organism without regard to cell environmental conditions (as the concentration of a substrate)—compare inducible ab:  controlling production of or coding genetic information for a constitutive enzyme or protein <constitutive genes> <constitutive mutations>

  2. 2:  being chromatin of a chromosomal region that is condensed into heterochromatin in all cells of an organism rather than just some

constitutively adverb

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a division or portion of a pool or whole

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