: an eruption occurring especially in tertiary syphilis consisting of vesicles having an inflamed base and filled with serous purulent or bloody fluid which dries up and forms large blackish conical crusts
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“Rupia.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/rupia. Accessed 30 Oct. 2025.
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