含がん水すい炭たん素そがんすいたんそMeanings1nouncarbohydrateobsolete termObsolete term; replaced by 炭水化物 (たんすいかぶつ) in modern Japanese. May appear in older scientific or historical texts.See also: 炭水化物戦せん前ぜんの教きょう科か書しょには「含がん水すい炭たん素そ」という表ひょう記きがよく見みられる。The notation '含水炭素' is often seen in pre-war textbooks.