These example sentences are selected automatically from various online news sources to reflect current usage of the word 'constitutive.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
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 induciblesense a
b: controlling production of or coding genetic information for a constitutive enzyme or protein
constitutive genesconstitutive mutations
2: being chromatin of a chromosomal region that is condensed into heterochromatin in all cells of an organism rather than just some