老おい冠かんむり

noun

kanji radical 老 (old) at the top

Refers specifically to the kanji component 老 when it appears as a crown radical (かんむり) in characters like 老, 考, or 者. Used in kanji pedagogy and dictionary contexts.

• 「老ろう」という漢かん字じの部ぶ首しゅは「老おい冠かんむり」と呼よばれます。

  The radical of the kanji 老 is called 老冠 (oikanmuri).

• 「考こう」の部ぶ首しゅは老おい冠かんむりです。

  The radical of 考 is 老冠.