hypothyroidism

noun

hy·​po·​thy·​roid·​ism ˌhī-pō-ˈthī-ˌrȯi-ˌdi-zəm How to pronounce hypothyroidism (audio)
: deficient activity of the thyroid gland
also : a resultant bodily condition characterized by lowered metabolic rate and general loss of vigor

Examples of hypothyroidism 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.
They may be caused by tumors, polyps, and cancerous growths in the ear canal; hypothyroidism; some antibiotic and diuretic medications; or a variety of household chemicals your cat might have come into contact with. Justin Gest, Newsweek, 10 Feb. 2025 However, few research studies have examined hypothyroidism and diets as a whole. Jamie Johnson, Verywell Health, 17 Jan. 2025 While there is no specific diet to treat or prevent hypothyroidism, certain food choices may help support healthy thyroid function. Jamie Johnson, Verywell Health, 17 Jan. 2025 When someone has hypothyroidism, symptoms may range from mild to severe, Alexander says. Caroline C. Boyle, USA TODAY, 17 Jan. 2025 See all Example Sentences for hypothyroidism 

Word History

Etymology

International Scientific Vocabulary

First Known Use

1905, in the meaning defined above

Time Traveler
The first known use of hypothyroidism was in 1905

Dictionary Entries Near hypothyroidism

Cite this Entry

“Hypothyroidism.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hypothyroidism. Accessed 21 Feb. 2025.

Kids Definition

hypothyroidism

noun
hy·​po·​thy·​roid·​ism ˌhī-pō-ˈthī-ˌrȯid-ˌiz-əm How to pronounce hypothyroidism (audio)
: too little activity of the thyroid gland
also : the abnormal bodily condition that results from this
hypothyroid
-ˌrȯid
adjective

Medical Definition

hypothyroidism

noun
hy·​po·​thy·​roid·​ism -ˌiz-əm How to pronounce hypothyroidism (audio)
: deficient activity of the thyroid gland
also : a resultant bodily condition characterized by lowered metabolic rate and general loss of vigor

More from Merriam-Webster on hypothyroidism

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!