Noun
1. the act of offering an improvement to replace a mistake; setting right
2. a quantity that is added or subtracted in order to increase the accuracy of a scientific measure
3. something substituted for an error
4. a rebuke for making a mistake
5. a drop in stock market activity or stock prices following a period of increases;
"market runups are invariably followed by a correction"6. the act of punishing;
"the offenders deserved the harsh discipline they received"7. treatment of a specific defect;
"the correction of his vision with eye glasses"