Merriam-Webster's Collegiate® Dictionary, 11th Edition
ADJECTIVE
I. adjective see: jet
Date: 14th century
of, relating to, or functioning as an adjective , not standing by itself ; dependent , requiring or employing a mordant , procedural , adjective ly adverb
II. noun
Date: 14th century
a word belonging to one of the major form classes in any of numerous languages and typically serving as a modifier of a noun to denote a quality of the thing named, to indicate its quantity or extent, or to specify a thing as distinct from something else