mad·​stone ˈmad-ˌstōn How to pronounce madstone (audio)
: a stony concretion (as a hair ball taken from the stomach of a deer) supposed formerly in folklore and by some physicians to counteract the poisonous effects of the bite of an animal (as one affected with rabies)

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Cite this Entry

“Madstone.” Medical Dictionary, Merriam-Webster, Accessed 22 Sep. 2023.

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