cannula Meaning, Definition & Usage

  1. noun a small flexible tube inserted into a body cavity for draining off fluid or introducing medication

WordNet

Can"nu*la noun
Etymology
L. cannula a small tube of dim. of canna a reed, tube.
Definitions
  1. (Surg.) A small tube of metal, wood, or India rubber, used for various purposes, esp. for injecting or withdrawing fluids. It is usually associated with a trocar. Written also canula.

Webster 1913