abreaction vs katharsis

abreaction and katharsis both are nouns.

Word	Noun	Adjective	Verb	Adverb
abreaction	Yes	No	No	No
katharsis	Yes	No	No	No

As nouns, abreaction and katharsis are synonyms defined as:

abreaction and katharsis: (psychoanalysis) purging of emotional tensions

Other synonyms of abreaction include catharsis.

abreaction (noun)	katharsis (noun)
(psychoanalysis) purging of emotional tensions	(psychoanalysis) purging of emotional tensions
	purging the body by the use of a cathartic to stimulate evacuation of the bowels