Diverticulum definition

dīvûr-tĭkyə-ləm
diverticula
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Frequency:
A pouch or sac branching out from a hollow organ or structure, such as the intestine.
noun
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(anat.) A normal or abnormal pouch or sac opening out from a tubular organ or main cavity.
noun
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A pouch or sac branching out from a hollow organ or structure, such as the intestine.
noun
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A pouch or sac branching out from a portion of the gastrointestinal tract, especially the large intestine. A diverticulum can occur as a normal structure, or it can be caused by a hernia.
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(anatomy) A small growth off an organ such as the large intestine.
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Other Word Forms

Noun

Singular:
diverticulum
Plural:
diverticula, diverticulums

Origin of diverticulum

  • New Latin from Latin dēverticulum by-path from dēvertere to turn aside dē- de- vertere to turn divert

    From American Heritage Dictionary of the English Language, 5th Edition

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

    From Wiktionary

Diverticulum Sentence Examples

  • The fore limbs grow simultaneously, and even more rapidly, but remain concealed within a diverticulum of the branchial chambers until fully formed, when they burst through the skin (unless the left spiraculum be utilized for the egress of the corresponding limb).

  • The male duct vd becomes fleshy and muscular near its termination at the genital pore, forming the penis p. Attached to it is a diverticulum fl, in which the spermatozoa which have descended from the ovo-testis are stored and modelled into sperm ropes or spermatophores.

  • In the Metanemertini there is a curious diverticulum of the intestine which stretches forward in the median line, ventral to the socalled stomach.

  • The small arm-sinus runs along the arms of the lophophore at the base of the tentacles, and gives off a blind diverticulum into each of these.

  • A, Fasciola hepatica, from the ventral surface (X 2); the alimentary and nervous systems only shown on the left side of the figure, the excretory only on the right; a, right main branch of the intestine; c, a diverticulum; g, lateral ganglion; n, lateral nerve; o, mouth; p, pharynx; s, ventral sucker; cs, cirrus sac; d, left anterior dorsal excretory vessel; m, main vessel; v, left anterior ventral trunk; x, excretory pore.

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