Source : Webster's Revised Unabridged Dictionary (1913)

Extractor \Ex*tract"or\, n.
   1. A centrifugal drying machine.

   2. (Apiculture) A machine for clearing combs of honey; also,
      a device for rendering wax.

Extractor \Ex*tract"or\, n.
   One who, or that which, extracts; as:
   (a) (Surg.) A forceps or instrument for extracting
       substances.
   (b) (Breech-loading Firearms) A device for withdrawing a
       cartridge or spent cartridge shell from the chamber of
       the barrel.

Source : WordNet®

extractor
     n 1: an instrument for extracting tight-fitting components
     2: an apparatus that uses centrifugal force to separate
        particles from a suspension [syn: {centrifuge}, {separator}]
     3: a mechanism in a firearm that pulls an empty shell case out
        of the chamber and passes it to the ejector [syn: {cartridge
        extractor}, {cartridge remover}]