noun / adjective
magnum
MAG-num/ˈmæɡnəm/
An unusually powerful firearm cartridge.
Each magnum cartridge lies beside the large revolver designed to fire it.

Etymology
Latin magnus conveys greatness in size or power, an idea applied to a powerful handgun. In this sense, the name emphasizes the power of the ammunition or the firearm using it.
In context
since this is a 44 magnum the most powerful handgun in the world and would blow your head clean off
More examples
- The box holds twenty magnums.
- This rifle uses magnum ammunition.
- A magnum revolver is designed for especially powerful cartridges.
Forms
magnum · magnums