Exterminator (May 30, 1915 - September 26, 1945) was an American Thoroughbred racehorse and the winner of the 1918 Kentucky Derby, and in 1922 won Horse of the Year honors.

someone who exterminates (especially someone whose occupation is the extermination of troublesome rodents and insects)

Exterminator is a basic, easy to use bug tracking system for Windows.

One who, or that which, exterminates.