ETYM Latin correctio: cf. French correction.
1. The act of offering an improvement to replace a mistake; SYN. correcting, rectification.
2. Treatment of a specific defect.
3. Something substituted for an error.
4. A quantity that is added or subtracted in order to increase the accuracy of a scientific measure; SYN. fudge factor.
5. A rebuke for making a mistake; SYN. chastening, chastisement.