an overactive thyroid gland; pathologically excessive production of thyroid hormones or the condition resulting from excessive production of thyroid hormones
例句
用作名词(n.)
Rarely, a struma ovarii can even be a cause for hyperthyroidism.极少数情况下，卵巢甲状腺肿也可以由甲状腺机能亢进引起。
Hyperthyroidism should eat seafood, as more iodine can increase the illness.甲状腺机能亢进者应少吃海鲜，因为含碘较多，可加重病情。
