ヒ酸 ひさん Also written 砒酸 Meanings Noun arsenic acid Kanji 酸 acid. Read as サン. Words containing ヒ酸 亜ヒ酸 (あひさん) arsenious acid ヒ酸鉛 (ヒさんなまり) lead arsenate Word lists Chemistry Jinuma: Japanese Dictionary · Word lists