exhauster

exhaust +‎ -er

exhauster (plural exhausters)

1. One who exhausts or depletes.
   • 1916, R. V. Russell, The Tribes and Castes of the Central Provinces of India‎:

     One of the most insignificant-looking men I ever saw then became the destroyer of nations, the leveller of mountains, the exhauster of the ocean.

2. (automotive) Exhaust system.
   • 1884, Various, Scientific American Supplement, No. 446, July 19, 1884‎:

     There is, however, another inconvenience which can only be remedied by the use of a second exhauster, viz., the loss of pressure after the passage of the gas through the washer--a loss resulting from the obstacle presented by this appliance to the steady flow of the gas.

   • 1962 December, “The B.R. standard diesel-electric Type 1 locomotive”, in Modern Railways, page 381:

     The Westinghouse type CM.38 air compressor is mounted under the main frame and the Northey rotary type exhausters are fitted one on each side of the platform at No. 1 end; [...].