chalkstone

noun

chalk·​stone ˈchȯk-ˌstōn How to pronounce chalkstone (audio)
: a concretion resembling chalk that is composed mainly of urate of sodium and found especially in and about the small joints of persons suffering from gout : tophus

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“Chalkstone.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/chalkstone. Accessed 12 Jul. 2025.

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