乳にゅう糖とうにゅうとうFreq.FrequencyTop 50,000Meanings1nounlactose; milk sugarchemistryChemistry term for the sugar found in milk.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にゅうを飲のむとお腹なかを壊こわすことがある。People with lactose intolerance may get an upset stomach from drinking milk.
