trichobezoar vs hairball

trichobezoar and hairball both are nouns.

Word	Noun	Adjective	Verb	Adverb
trichobezoar	Yes	No	No	No
hairball	Yes	No	No	No

As nouns, trichobezoar and hairball are synonyms defined as:

trichobezoar and hairball: a compact mass of hair that forms in the alimentary canal (especially in the stomach of animals as a result of licking fur)

Other synonyms of trichobezoar include hair ball.

trichobezoar (noun)	hairball (noun)
a compact mass of hair that forms in the alimentary canal (especially in the stomach of animals as a result of licking fur)	a compact mass of hair that forms in the alimentary canal (especially in the stomach of animals as a result of licking fur)