extrusion vs excrescence

extrusion and excrescence both are nouns.

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

As nouns, extrusion and excrescence are synonyms defined as:

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

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

extrusion (noun)	excrescence (noun)
squeezing out by applying pressure	(pathology) an abnormal outgrowth or enlargement of some part of the body
something that bulges out or is protuberant or projects from its surroundings	something that bulges out or is protuberant or projects from its surroundings