swelling vs extrusion

swelling and extrusion both are nouns.

Word	Noun	Adjective	Verb	Adverb
swelling	Yes	No	No	No
extrusion	Yes	No	No	No

As nouns, swelling and extrusion are synonyms defined as:

swelling and extrusion: something that bulges out or is protuberant or projects from its surroundings

Other synonyms of swelling include bulge, bump, excrescence, gibbosity, gibbousness, hump, jut, prominence, protrusion, protuberance.

swelling (noun)	extrusion (noun)
the increase in volume of certain substances when they are heated (often accompanied by release of water)	squeezing out by applying pressure
something that bulges out or is protuberant or projects from its surroundings	something that bulges out or is protuberant or projects from its surroundings
an abnormal protuberance or localized enlargement