noun
Technical term used in grammar, programming, and other fields for an element that modifies or qualifies another.
このプログラミング言語では、修飾子を使って変数のアクセス範囲を制限できる。
In this programming language, you can restrict the access scope of variables using modifiers.
日本語の文法では、名詞を修飾する語を修飾子と呼ぶことがある。
In Japanese grammar, words that modify nouns are sometimes called modifiers.
Compound of 修飾 (modification) and 子 (a suffix used for small or subordinate elements, here meaning 'element'). The exact derivation is uncertain, but the term is a modern technical coinage.