/ Dictionary / Index C constitutive: Meaning and Definition of Find definitions for: con•sti•tu•tive Pronunciation: (kon'sti-t"tiv, -ty"-), [key] — adj. constituent; making a thing what it is; essential. having power to establish or enact. pertaining to a molecular property determined primarily by the arrangement of atoms in the molecule rather than by their nature or number. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: constitutive (Thesaurus) Constitution State constr. Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language