1. One that chops: a vegetable chopper.

2. Archaeology A crudely flaked core tool, especially one of the early Paleolithic Period.

3. A device that interrupts an electric current or a beam of radiation.

4. Informal A helicopter.

5. choppers Slang Teeth, especially a set of false teeth.

6. Informal A motorcycle, especially one that is customized.

7. Baseball A ground ball that is hit with a chopping swing, especially one that bounces high off the infield.