Synonyms for Determinative:
crucial, decisive, definitive, determinant, determining, final.
n.authoritative, conclusive, decide, definitive, final. important. •communication (noun)
causal factor, crucial, deciding, decisive, determinant, determiner, determining factor, determining.
Usage examples for determinative
The earliest Egyptian hieroglyphic sign for gold was a picture of a necklace of such amulets; and this emblem became the determinative of the Great Mother Hathor, not only because she was originally the personification of the life- giving shells, but also because she was the guardian deity both of the Eastern wadys where the gold was found and of the Red Sea coasts where the cowries were obtained. – The Evolution of the Dragon by G. Elliot Smith