'Cannula' definitions:
Definition of 'cannula'
(from WordNet)
noun
A small flexible tube inserted into a body cavity for draining off fluid or introducing medication
Definition of 'Cannula'
From: GCIDE
- Cannula \Can"nu*la\, n. [L. cannula a small tube of dim. of canna a reed, tube.] (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.] [1913 Webster]