metalanguage
Technical term in linguistics and logic for a language used to describe or analyze another language. Often contrasted with 対象言語 (object language).
See also: メタ言語
言語学では、高次言語を使って文法規則を記述する。
In linguistics, metalanguage is used to describe grammatical rules.
The metalanguage of logic is used to discuss the truth or falsity of propositions.