hyperthyroidism (ˌhaɪpəˈθaɪrɔɪˌdɪzəm) ![]() | |
| —n | |
| See exophthalmic goitre Also called: thyrotoxicosis overproduction of thyroid hormone by the thyroid gland, causing nervousness, insomnia, sweating, palpitation, and sensitivity to heat | |
| hyper'thyroid | |
| —adj, —n | |
| a gadget; dingus; thingumbob. |
| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
hyperthyroidism hy·per·thy·roid·ism (hī'pər-thī'roi-dĭz'əm)
n.
Pathologically excessive production of thyroid hormones.
The condition resulting from excessive activity of the thyroid gland, characterized by increased basal metabolism.
| hyperthyroidism (hī'pər-thī'roi-dĭz'əm) Pronunciation Key
An abnormality of the thyroid gland characterized by excessive production of thyroid hormone, which can result in an increased basal metabolic rate, causing weight loss, heart palpitations, and tremors. Compare hypothyroidism. |
hyperthyroidism
excess hormone production by the thyroid gland.
Learn more about hyperthyroidism with a free trial on Britannica.com.