determiner

nouns

an argument that is conclusive
clincher, determiner, determining factor
is derived from
determine
one of a limited class of noun modifiers that determine the referents of noun phrases
determinative, determiner
is derived from
determine
a determining or causal element or factor
"education is an important determinant of one's outlook on life"
causal factor, determinant, determinative, determiner, determining factor
is derived from
determine