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Meaning of fistula

fis•tu•la

Pronunciation: (fis'choo-lu), [key]
— pl. -las, -lae
  1. a narrow passage or duct formed by disease or injury, as one leading from an abscess to a free surface, or from one cavity to another.
  2. an opening made into a hollow organ, as the bladder or eyeball, for drainage.
  3. any of various suppurative inflammations, as in the withers of a horsecharacterized by the formation of passages or sinuses through the tissues and to the surface of the skin.
  4. a pipe, as a flute.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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