revisal vs revision

revisal and revision both are nouns.

Word	Noun	Adjective	Verb	Adverb
revisal	Yes	No	No	No
revision	Yes	No	No	No

As nouns, revisal and revision are synonyms defined as:

Other synonyms of revisal include rescript, revise.

revisal (noun)	revision (noun)
the act of rewriting something	the act of revising or altering (involving reconsideration and modification)
	something that has been written again
	the act of rewriting something