乳にゅう糖とう不ふ耐たい症しょうにゅうとうふたいしょうMeanings1nounlactose intolerancemedicine›Medical term for the inability to digest lactose, often due to lactase deficiency.乳にゅう糖とう不ふ耐たい症しょうの人ひとは牛ぎゅう乳