Word Study
cannula
CIDE DICTIONARY
cannula, n. [L. cannula a small tube of dim. of canna a reed, tube.].
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. [1913 Webster]
OXFORD DICTIONARY
cannula, n. (pl. cannulae or cannulas) Surgery a small tube for inserting into the body to allow fluid to enter or escape.
Etymology
L, dimin. of canna cane
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