abreaction vs catharsis

abreaction and catharsis both are nouns.

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

As nouns, abreaction and catharsis are synonyms defined as:

abreaction and catharsis: (psychoanalysis) purging of emotional tensions

Other synonyms of abreaction include katharsis.

abreaction (noun)	catharsis (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