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melanosis coli

noun

melanosis co·​li -ˈkō-ˌlī How to pronounce melanosis coli (audio)
: dark brownish black pigmentation of the mucous membrane of the colon due to the deposition of pigment in macrophages

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“Melanosis coli.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/melanosis%20coli. Accessed 2 Dec. 2025.

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