holdover

1. (countable) Something left behind, saved or remaining from an earlier time.Examples: "That policy is a holdover from days of punch card data entry."; "Castle Rock Middle School was a frowning pile of red brick standing between the Post Office and the Library, a holdover from the time when the town elders didn't feel entirely comfortable with a school unless it looked like a reformatory."countable

2. (firearms) The distance (at target) by which a rifle scope is aimed higher than the intended point of impact in order to compensate for bullet drop over the distance to the target.Examples: "This rangefinder not only measures the distance to the target, but also provides a digital readout of the inches of holdover at that distance."countableuncountable