- An act or instance of fuel or oxidant depletion or, ideally, the simultaneous depletion of both; the time at which this occurs. Compare cutoff.
In the United Kingdom all burnt is preferred to burnout.
- An act or instance of something burning out or of overheating; specifically, an act or instance of a rocket combustion chamber, nozzle, or other part overheating so as to result in damage or destruction.
This article is based on NASA's Dictionary of Technical Terms for Aerospace Use