diverticulitis
noun/ˌdaɪvətɪkjəˈlaɪtɪs/
/ˌdaɪvərtɪkjəˈlaɪtɪs/
[uncountable] (medical)- painful swelling (= the condition of being larger or rounder than normal) in part of the colon, which affects the function of the bowels
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diverticulitis