超変異 ちょうへんい Meanings Noun hypermutation Kanji 超 exceed. Read as チョウ. 変 change. Read as ヘン. 異 different. Read as イ. Words containing 超変異 体細胞超変異 (たいさいぼうちょうへんい) somatic hypermutation Jinuma: Japanese Dictionary · Word lists