defending vs defensive

defending is not a noun while defensive is a noun.

Word	Noun	Adjective	Verb	Adverb
defending	No	Yes	No	No
defensive	Yes	Yes	No	No

defending (noun)	defensive (noun)
	an attitude of defensiveness

defending (adjective)	defensive (adjective)
attempting to or designed to prevent an opponent from winning or scoring	intended or appropriate for defending against or deterring aggression or attack
	attempting to justify or defend in speech or writing