revolver

noun4

1. •
   A handgun with a revolving chamber enabling several shots to be fired without reloading.
2. •
   Any (personal) firearm with such a mechanism.
3. •
   Synonym of revolving line of credit, a form of credit permitting the holder to repeatedly borrow money.

   • The debt is split between $6.5bn of term loans, as well as $6bn of senior and junior bonds and a $500mn revolver. — 2023
4. •
   Agent noun of revolve; something that revolves.