Correction
Revision
noun, verbal noun, の adjective
When you revise something to make it correct you are doing a correction and revision.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
もし私の日本語に間違いがあれば、その場で訂正してもらってもいいですか？
If I make a mistake in Japanese would you mind correcting it on the spot for me?