hyperthyroidism

noun

hy·​per·​thy·​roid·​ism ˌhī-pər-ˈthī-ˌrȯi-ˌdi-zəm How to pronounce hyperthyroidism (audio)
: 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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
But excessive sweating can be a sign of a medical issue like heart problems, low blood sugar, hyperthyroidism or infections like the flu or tuberculosis. Bruce Y. Lee, Forbes, 21 Feb. 2025 This medication should not be used on pregnant or lactating animals, or animals with urinary, stomach or intestinal obstructions, high blood pressure or hyperthyroidism. Bestreviews, Chicago Tribune, 26 Feb. 2025 Williams had previously revealed Graves’ disease and hyperthyroidism diagnoses. Conor Murray, Forbes, 16 Jan. 2025 Excess iodine can exacerbate thyroid issues, especially for people with hyperthyroidism. Boutayna Chokrane, WIRED, 6 Dec. 2024 See All Example Sentences for hyperthyroidism

Word History

Etymology

International Scientific Vocabulary

First Known Use

circa 1900, in the meaning defined above

Time Traveler
The first known use of hyperthyroidism was circa 1900

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Cite this Entry

“Hyperthyroidism.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hyperthyroidism. Accessed 13 Mar. 2025.

Kids Definition

hyperthyroidism

noun
hy·​per·​thy·​roid·​ism ˌhī-pər-ˈthī-ˌrȯid-ˌiz-əm How to pronounce hyperthyroidism (audio)
-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- How to pronounce hyperthyroidism (audio)
: 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

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