noun equivalent; substantive
A grammatical term for a phrase or clause that functions like a noun. Used in linguistic descriptions.
In 'Running is good for your health,' 'running' is a noun equivalent.
名詞節 is a noun clause, while 名詞相当語句 is a broader term that includes any phrase functioning as a noun.
Compound of 名詞 (noun) + 相当 (equivalent) + 語句 (phrase). A modern grammatical term.