modifier; modify

a word or phrase that adds to the meaning of a following noun, typically by elaborating, describing, clarifying, identify- ing or delimiting a noun or noun phrase. In English, modifiers typically include the use of adjectives before the noun (pink sweater, pretty girl, tall building) or relative clauses that follow the noun (the sweater that I wore yesterday, the girl who bought me lunch, the building where I work). Unlike a complement, a modifier is an optional element. Even if it is omitted, the sentence will still be grammatical.