Fistula

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Fistula

(n.) A reed; a pipe.
(n.) A pipe for convejing water.
(n.) A permanent abnormal opening into the soft parts with a constant discharge; a deep, narrow, chronic abscess; an abnormal opening between an internal cavity and another cavity or the surface; as, a salivary fistula; an anal fistula; a recto-vaginal fistula.