·noun One who, or that which, retracts.
II. Retractor ·noun An instrument for holding apart the edges of a wound during amputation.
III. Retractor ·noun A bandage to protect the soft parts from injury by the saw during amputation.
IV. Retractor ·noun In breech-loading firearms, a device for withdrawing a cartridge shell from the barrel.
V. Retractor ·noun A muscle serving to draw in any organ or part. ·see ·Illust. under Phylactolaemata.