hyperthyroidism

noun

hy·​per·​thy·​roid·​ism ˌhī-pər-ˈthī-ˌrȯi-ˌdi-zəm 

: excessive functional activity of the thyroid gland

also : the resulting condition marked especially by increased metabolic rate, enlargement of the thyroid gland, rapid heart rate, and high blood pressure

Examples of hyperthyroidism in a Sentence

Recent Examples on the Web

For instance, a person with hyperthyroidism and new palpitations may have warm, sweaty skin, whereas someone with anemia may appear pale or have cool hands and feet. —Rafle Fernandez, Verywell Health, 10 Sep. 2024

For example, hypothyroidism and hyperthyroidism can cause symptoms like fatigue, mood changes and irregular periods, which are similar to perimenopause. —Sandra Rose Salathe, Flow Space, 10 Sep. 2024

Thyroid storm is a rare and life-threatening condition that can happen to people with hyperthyroidism. —Becky Upham, EverydayHealth.com, 13 Aug. 2024

Having a parasite or suffering from constipation, hyperthyroidism or inflammatory bowel disease may also make your cat throw up, says Kornreich. —Olivia Munson, USA TODAY, 15 Aug. 2024

Word History

Etymology

International Scientific Vocabulary

First Known Use

circa 1900, in the meaning defined above

Kids Definition

hyperthyroidism

noun

hy·​per·​thy·​roid·​ism ˌhī-pər-ˈthī-ˌrȯid-ˌiz-əm 

-rəd-

: abnormally high activity of the thyroid gland

also : the resulting abnormal state of health

hyperthyroid

-ˌrȯid

adjective

Medical Definition

hyperthyroidism

noun

hy·​per·​thy·​roid·​ism -ˌrȯid-ˌiz-əm, -rəd- 

: excessive functional activity of the thyroid gland

also : the resulting condition marked especially by increased metabolic rate, enlargement of the thyroid gland, rapid heart rate, and high blood pressure

called also thyrotoxicosis

see graves' disease