- 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
Word Origin for cannula
C17: from Latin: a small reed, from canna a reed
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
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.