1. (n.) One who, or that which, retracts.

2. (n.) In breech-loading firearms, a device for withdrawing a cartridge shell from the barrel.

3. (n.) An instrument for holding apart the edges of a wound during amputation.

4. (n.) A bandage to protect the soft parts from injury by the saw during amputation.

5. (n.) A muscle serving to draw in any organ or part.