- a device that holds or presses parts tightly together
- a hose clamp
- The surgeon clamped the vein.
- He clamped the two pieces of wood together.
- The bit was clamped firmly between the horse's teeth.
- He clamped his mouth shut and refused to speak.
- to try harder to punish (people who are doing something that is not legal or proper)
- Customs officials are clamping down on [=cracking down on] smugglers.
- The school should clamp down on students who cut classes.
- The state is clamping down on [=cracking down on] drug trafficking.
- The mayor clamped [=imposed] a curfew on the area after the riots.
- The new law clamps limits on the amount of money candidates can spend on election campaigns.