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[fis-choo-luh] /ˈfɪs tʃʊ lə/
noun, plural fistulas, fistulae
[fis-choo-lee] /ˈfɪs tʃʊˌli/ (Show IPA)
Pathology. 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.
Surgery. an opening made into a hollow organ, as the bladder or eyeball, for drainage.
Veterinary Pathology. any of various suppurative inflammations, as in the withers of a horse (fistulous withers) characterized by the formation of passages or sinuses through the tissues and to the surface of the skin.
Obsolete. a pipe, as a flute.
Origin of fistula
1350-1400; Middle English < Latin: pipe, tube, fistula Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for fistulae


noun (pl) -las, -lae (-ˌliː)
(pathol) an abnormal opening between one hollow organ and another or between a hollow organ and the surface of the skin, caused by ulceration, congenital malformation, etc
(obsolete) any musical wind instrument; a pipe
Word Origin
C14: from Latin: pipe, tube, hollow reed, ulcer
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for fistulae



"long, narrow ulcer," late 14c., from Latin fistula "pipe; ulcer," of uncertain origin.

Online Etymology Dictionary, © 2010 Douglas Harper
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fistulae in Medicine

fistula fis·tu·la (fĭs'chə-lə)
n. pl. fis·tu·las or fis·tu·lae (-lē')
An abnormal passage from a hollow organ to the body surface, or from one organ to another.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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