thyroiditis

noun

thy·​roid·​itis ˌthī-ˌrȯi-ˈdī-təs How to pronounce thyroiditis (audio)
ˌthī-rə-
: inflammation of the thyroid gland

Examples of thyroiditis 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.
Maintaining healthy selenium levels may help prevent and slow the progression of thyroid disease, especially autoimmune conditions such as Graves' disease, Graves' eye disease, and Hashimoto's thyroiditis. Anna Giorgi, Verywell Health, 10 Feb. 2026 Benign thyroid nodules, which are usually caused by an unexplained overgrowth of thyroid tissue, or thyroiditis (inflammation of the thyroid) can cause the condition too. Sonya Collins, SELF, 16 Jan. 2026 Autoimmune thyroid disease, Hashimoto’s thyroiditis (low thyroid levels) and Grave’s disease (high thyroid levels) are examples of this. Elizabeth Yuko, Flow Space, 28 Aug. 2025 For instance, the thyroid is the only part of the body targeted in a disease called Hashimoto’s thyroiditis. Kristen Demoruelle, The Conversation, 27 Aug. 2025 See All Example Sentences for thyroiditis

Word History

Etymology

thyroid entry 1 + -itis

First Known Use

circa 1885, in the meaning defined above

Time Traveler
The first known use of thyroiditis was circa 1885

Cite this Entry

“Thyroiditis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/thyroiditis. Accessed 16 Feb. 2026.

Medical Definition

thyroiditis

noun
thy·​roid·​itis ˌthī-ˌrȯid-ˈīt-əs, -rəd- How to pronounce thyroiditis (audio)
: inflammation of the thyroid gland

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