exhaust

  1. Verb.  To draw or let out wholly; to drain off completely; as, to exhaust the water of a well; the moisture of the earth is exhausted by evaporation.
  2. Verb.  To empty by drawing or letting out the contents; as, to exhaust a well, or a treasury.
  3. Verb.  To drain, metaphorically; to use or expend wholly, or till the supply comes to an end; to deprive wholly of strength; to use up; to weary or tire out; to wear out; as, to exhaust one's strength, patience, or resources.
  4. Verb.  To bring out or develop completely; to discuss thoroughly; as, to exhaust a subject.
  5. Verb.  (chemistry) To subject to the action of various solvents in order to remove all soluble substances or extractives; as, to exhaust a drug successively with water, alcohol, and ether.
  6. Noun.  System consisting of the parts of an engine through which burned gases or steam are discharged.
  7. Noun.  The steam let out of a cylinder after it has done its work there.
  8. Noun.  The foul air let out of a room through a register or pipe provided for the purpose.
  9. Noun.  An exhaust pipe, especially on a motor vehicle.
  10. Noun.  Short for exhaust gas or used steam released from a steam engine.

This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.

This entry was last updated on RefTopia from its source on 3/20/2012.