n.
1.the act of offering an improvement to replace a mistake
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
6.the act of punishing
7.treatment of a specific defect
Idiom of the Day
get after (someone) to do (something)
to urge or try to make someone do something that he or she should do but has neglected
I will get after the repairman to fix the computer as soon as he returns.