Exhaust

1. To bring out or develop completely; to discuss thoroughly; as, to exhaust a subject.
2. The foul air let out of a room through a register or pipe provided for the purpose.
3. Drained; exhausted; having expended or lost its energy.
4. The steam let out of a cylinder after it has done its work there.
5. 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.
6. 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.
7. Pertaining to steam, air, gas, etc., that is released from the cylinder of an engine after having preformed its work.
8. To empty by drawing or letting out the contents; as, to exhaust a well, or a treasury.
9. 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.