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From Latin dīverticulum, alternative form of dēverticulum (byroad; deviation), from dēvertō (turn away, turn aside).


diverticulum (plural diverticulums or diverticula)

  1. (anatomy) A small growth off an organ such as the large intestine.
    • 2015, David Shaw, translating Giulia Enders, Gut, Scribe 2016, p. 16:
      Diverticula are small, light-bulb-shaped pouches in the bowel wall, resulting from the tissue in the gut bulging outwards under pressure.

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dīverticulum n (genitive dīverticulī); second declension

  1. Alternative form of dēverticulum ("byroad").
  2. (anatomy, New Latin, exclusively as diverticulum) A small growth off an organ of a body; diverticulum.
    • 1829, University of Groningen, Annales Academiae groninganae, Commentatio de diverticulus intestinorum, page 69:
      Baillie exemplum praebuit diverticuli coniuncti cum vitiis a niſu formativo abnormi productis: illuc ſc. invenit in foetu, cui aderat omnium thoracis et abdominis viscerum ſitus inverſus, una cum partitione lienis in quinque lobos, uti in Cetaceis ſolet.
      Baillie provided an example of a diverticulum connected with defects extended by an abnormal formative impulse. To that point naturally it is found in a foetus, to whom an inverted position of all the internal organs of the abdomen and thorax is present, together with a separation of the spleen into five lobes, as is usual in cetaceans.


Second declension.

Case Singular Plural
Nominative dīverticulum dīverticula
Genitive dīverticulī dīverticulōrum
Dative dīverticulō dīverticulīs
Accusative dīverticulum dīverticula
Ablative dīverticulō dīverticulīs
Vocative dīverticulum dīverticula