/chop"euhr/ , n.
1. a person or thing that chops.
2. a short ax with a large blade, used for cutting up meat, fish, etc.; butcher's cleaver.
3. a prehistoric implement made by striking flakes off one or both sides of a stone, considered the oldest known worked stone tool.
4. choppers , Slang. the teeth.
5. Informal. a helicopter.
6. Slang. a motorcycle.
7. a device for interrupting an electric current or a beam of light at regular intervals.
v.i.
8. Informal.
a. to travel by helicopter: We choppered into midtown from the airport.
b. to travel by motorcycle.
[ 1545-55; 1950-55 for def. 5; CHOP 1 + -ER 1 ]