Constitutive
Pronunciation : Con"sti*tu`tive
Part of Speech : a.
Definition : 1. Tending or assisting to constitute or compose; elemental; essential. An ingredient and constitutive part of every virtue. Barrow.
2. Having power to enact, establish, or create; instituting; determining. Sir W. Hamilton.
Source : Webster's Unabridged Dictionary, 1913