noun. One who or that which sets right, or renders conformable to a certain standard, usage, or rule, or to an original or a model; one who corrects errors.

noun. One who or that which counteracts or removes whatever is injurious, obnoxious, or defective: as, a corrector of abuses; a corrector of acidity, etc.

noun. One who amends or corrects, or seeks to amend or correct, the character or conduct of another, by criticism, reproof, or chastisement.

noun. One who, or that which, corrects.

noun. One that corrects.