部ぶ首しゅ

noun

kanji radical; radical of a character

A term used in kanji dictionaries and study to identify the classified component of a kanji, such as さんずい in 海.

• 海うみの部ぶ首しゅはさんずいです。

  The radical of 海 is さんずい.

• 漢かん字じ辞じ典てんで部ぶ首しゅから漢かん字じを調しらべた。

  I looked up the kanji in a character dictionary by its radical.