defence reaction vs defense reaction

defence reaction and defense reaction both are nouns.

Word	Noun	Adjective	Verb	Adverb
defence reaction	Yes	No	No	No
defense reaction	Yes	No	No	No

As nouns, defence reaction and defense reaction are synonyms defined as:

defence reaction and defense reaction: (psychiatry) an unconscious process that tries to reduce the anxiety associated with instinctive desires

Other synonyms of defence reaction include defence, defence mechanism, defense, defense mechanism.

defence reaction (noun)	defense reaction (noun)
(psychiatry) an unconscious process that tries to reduce the anxiety associated with instinctive desires	(psychiatry) an unconscious process that tries to reduce the anxiety associated with instinctive desires