1. 
   Compensator
   Com'pen·sa`tor noun 1. One who, or that which, compensates; -- a name applied to various mechanical devices. 2. (Nautical) An iron plate or magnet placed near the compass on iron vessels to neutralize the effect of the ship's attr...
   Found op http://www.encyclo.co.uk/webster/C/121
   
   
2. 
   Compensator
   • (n.) One who, or that which, compensates; -- a name applied to various mechanical devices. • (n.) An iron plate or magnet placed near the compass on iron vessels to neutralize the effect of the ship`s attraction on the needle.
   Found op http://thinkexist.com/dictionary/meaning/compensator/
   
   
3. 
   compensator
   a device used to accommodate oil or compound expansion in the sealing ends
   Found op http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=461-12-03
   
   
4. 
   Compensator
   In firearms, a compensator is a device which is attached to the muzzle of automatic weapons to reduce the tendency of such weapons to rise at the muzzle when being fired in full automatic mode. The compensator directs some of the muzzle blast upwards, thereby forcing the muzzle down and compensating...
   Found op http://www.probertencyclopaedia.com/browse/FC.HTM
   
   

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