cannula vs tubing

cannula and tubing both are nouns.

Word	Noun	Adjective	Verb	Adverb
cannula	Yes	No	No	No
tubing	Yes	No	No	No

As nouns, tubing is a hypernym of cannula; that is, tubing is a word with a broader meaning than cannula:

cannula: a small flexible tube inserted into a body cavity for draining off fluid or introducing medication
tubing: conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases

Other hypernyms of cannula include tube.

cannula (noun)	tubing (noun)
a small flexible tube inserted into a body cavity for draining off fluid or introducing medication	conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases