correctional vs correction

correctional is not a noun while correction is a noun.

Word	Noun	Adjective	Verb	Adverb
correctional	No	Yes	No	No
correction	Yes	No	No	No

correctional (noun)	correction (noun)
	the act of offering an improvement to replace a mistake; setting right
	treatment of a specific defect
	the act of disciplining
	a drop in stock market activity or stock prices following a period of increases
	a rebuke for making a mistake
	something substituted for an error
	a quantity that is added or subtracted in order to increase the accuracy of a scientific measure

correctional (adjective)	correction (adjective)
concerned with or providing correction