exhaust

American Heritage® Dictionary of the English Language, Fourth Edition

1. v. To wear out completely. See Synonyms at tire¹.
2. v. To drain of resources or properties; deplete: tobacco crops that exhausted the soil. See Synonyms at deplete.
3. v. To use up completely: exhausted our funds before the month was out.
4. v. To treat completely; cover thoroughly: exhaust a topic.
5. v. To draw out the contents of; drain: exhaust a tank gradually.
6. v. To let out or draw off: exhaust vaporous wastes through a pipe.
7. v. To escape or pass out: Steam exhausts through this valve.
8. n. The escape or release of vaporous waste material, as from an engine.
9. n. The fumes or gases so released.
10. n. A duct or pipe through which waste material is emitted.
11. n. An apparatus for drawing out noxious air or waste material by means of a partial vacuum.

Century Dictionary and Cyclopedia

1. To draw out or drain off the whole of; draw out till nothing of the matter drawn is left; remove or take out completely: as, to exhaust the water of a well, or the air from a receiver; to exhaust the contents of a mine, or of one's purse.
2. To use up or consume completely; expend or make away with the whole of; cause the total removal or loss of: as, to exhaust the fertility of the soil; to exhaust one's strength or resources; you have exhausted my patience.
3. To empty by drawing out the contents of; make empty by drawing from; specifically, in chem., to empty or deprive of one or more ingredients by the use of solvents: as, to exhaust a closed vessel by means of an air-pump; to exhaust a cistern.
4. Hence To make weak or worthless by deprivation of essential properties or possessions; despoil of strength, resources, etc.; make useless or helpless: as, a man exhausted by fatigue or disease; bad husbandry exhausts the land; the long war exhausted the country.
5. To treat or examine exhaustively; take a complete view of; consider or view in all parts, bearings, or relations: as, to exhaust a topic, a study, or a pursuit; to exhaust a book by careful reading or study.
6. . To draw forth; excite.
7. Expended; drained; exhausted, as of energy or strength.
8. n. . Same as exhaust-steam.
9. n. Eduction; emission, as of steam from an engine.
10. n. A pump, fan, or other device for removing air from a building, enclosure, or receptacle, by lowering the pressure in the egress-pipe or flue.

Wiktionary

1. v. 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. v. To empty by drawing or letting out the contents; as, to exhaust a well, or a treasury.
3. v. 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. v. To bring out or develop completely; to discuss thoroughly; as, to exhaust a subject.
5. v. 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. n. A system consisting of the parts of an engine through which burned gases or steam are discharged; see also exhaust system.
7. n. The steam let out of a cylinder after it has done its work there.
8. n. The foul air let out of a room through a register or pipe provided for the purpose.
9. n. An exhaust pipe, especially on a motor vehicle.
10. n. Short for exhaust gas.
11. adj. Involved with, caused by, or causing exhaustion.

GNU Webster's 1913

1. v. To draw or let out wholly; to drain off completely
2. v. To empty by drawing or letting out the contents.
3. v. 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.
4. v. To bring out or develop completely; to discuss thoroughly.
5. v. (Chem.) To subject to the action of various solvents in order to remove all soluble substances or extractives.
6. adj. Drained; exhausted; having expended or lost its energy.
7. adj. Pertaining to steam, air, gas, etc., that is released from the cylinder of an engine after having preformed its work.
8. n. (Steam Engine) The steam let out of a cylinder after it has done its work there.
9. n. The foul air let out of a room through a register or pipe provided for the purpose.

WordNet 3.0

1. v. use up the whole supply of
2. v. use up (resources or materials)
3. n. gases ejected from an engine as waste products
4. v. wear out completely
5. v. eliminate (a substance)
6. n. system consisting of the parts of an engine through which burned gases or steam are discharged
7. v. deplete.