- (v.t.) 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.
- (v.t.) To empty by drawing or letting out the contents; as, to exhaust a well or a treasury.
- (v.t.) To bring out or develop completely; to discuss thoroughly; as, to exhaust a subject.
- (n.) The steam let out of a cylinder after it has done its work there.
- (a.) Pertaining to steam, air, gas, etc., that is released from the cylinder of an engine after having preformed its work.
- (n.) The foul air let out of a room through a register or pipe provided for the purpose.
- (v.t.) 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.
- (v.t.) 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.
- (a.) Drained; exhausted; having expended or lost its energy.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). exhaust. Retrieved September 20, 2026, from http://smartdefine.org/exhaust/definitions/2005845 |
| Chicago | Webster's. 2011. "exhaust" http://smartdefine.org/exhaust/definitions/2005845 (accessed September 20, 2026). |
| Harvard | Webster's 2011, exhaust, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/exhaust/definitions/2005845>. |
| MLA | Webster's. "exhaust" 27 May 2011. Web. 20 September 2026. <http://smartdefine.org/exhaust/definitions/2005845> |