Wiktionary
restartable
a. Capable of being restarted.
Usage examples of "restartable".
We have design studies by Rockwell dating back to 1972 showing how the S-II could be upgraded for such a role, by providing it with restartable engines, insulation, course-adjustment verniers, docking facilities.
The XLR-99 engine was a throttleable, restartable, reusable rocket engine, with almost as much thrust as the throwaway Redstone booster which had thrown Shepard and Grissom up on their first Mercury suborbital lobs.