delta-v
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English
Etymology
delta (“change”) + v (“velocity”)
Noun
- (physics) A vector change in velocity, especially a small change as a result of a corresponding change in some other parameter
- (astronautics) the maximum change in the scalar speed of a rocket if the rocket were operated in a vacuum away from external forces
- (astronautics) a minimum scalar requirement for rocket delta-v to be able to achieve a particular manoeuvre