pl. -·lae· or -·las
a tube, usually with a trocar, for insertion into body cavities or ducts, as for drainage
Origin of cannulaL, diminutive of canna: see cane
nounpl. can·nu·las or can·nu·lae also can·u·las or can·u·lae
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.
Origin of cannulaLatin, diminutive of canna, reed; see cane.
(plural cannulas or cannulae or cannulæ)