二重水素 にじゅうすいそ Meanings Noun deuterium; heavy hydrogen See also: 重水素 (じゅうすいそ). Kanji 二 two. Read as ニ. 重 heavy. Read as ジュウ. 水 water. Read as スイ. 素 element. Read as ソ. Word lists Chemistry Jinuma: Japanese Dictionary · Word lists