- a metal tube for insertion into the body to draw off fluid or to introduce medication.
Origin of cannula
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- surgery a narrow tube for insertion into a bodily cavity, as for draining off fluid, introducing medication, etc
C17: from Latin: a small reed, from canna a reed
Word Origin and History for cannulation
1680s in surgical sense, from Latin cannula "small reed or pipe," diminutive of canna "reed, pipe" (see cane (n.)).
Online Etymology Dictionary, © 2010 Douglas Harper
- Insertion of a cannula.
- A flexible tube, usually containing a trocar at one end, that is inserted into a bodily cavity, duct, or vessel to drain fluid or administer a substance such as a medication.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.