gibbosity vs swelling

gibbosity and swelling both are nouns.

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

As nouns, gibbosity and swelling are synonyms defined as:

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

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

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