diverticulum

Noun
  1. A herniation through the muscular wall of a tubular organ (especially the colon) (synset 114319331)
    is a type of: hernia, herniation - rupture in smooth muscle tissue through which a bodily structure protrudes
    subtypes: meckel's diverticulum - a congenital diverticulum in the ileum resulting from incomplete closure of the yolk sac

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