Adjective: smoothbore 'smoodh,bor
- Of a firearm; not having rifling or internal spiral grooves inside the barrel
"The smoothbore musket was less accurate over long distances";
- unrifled
- A firearm that has no rifling
"Smoothbores were common in early firearms before the advent of rifling"
Derived forms: smoothbores
Type of: firearm, piece, small-arm
Antonym: rifled
Encyclopedia: Smoothbore