A disease caused by decreased activity of the thyroid gland in adults and characterized by dry skin, swellings around the lips and nose, mental deterioration, and a subnormal basal metabolic rate.

• 粘液性水肿在成年人中，由甲状腺机能减退引起的疾病，特征为皮肤干燥、唇和鼻子周围肿胀、智力退化和低于正常的基本代谢速度