气味好闻的白色粉末状药物；用来吸收少量的太阳茶色油或作为一种防腐剂或杀菌药或使肠道舒畅的药物

• a white powder with a pleasant taste and odor; used to absorb light in sun tan lotions or as a preservative or an antiseptic or a coating for pills in which the medicine is intended for enteric release