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Riedel's disease

noun

Rie·​del's disease ˈrēd-ᵊlz- How to pronounce Riedel's disease (audio)
: chronic thyroiditis in which the thyroid gland becomes hard and stony and firmly attached to surrounding tissues

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Cite this Entry

“Riedel's disease.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/Riedel%27s%20disease. Accessed 26 Nov. 2025.

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