Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

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

from Wiktionary, Creative Commons Attribution/Share-Alike License

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

from the GNU version of the Collaborative International Dictionary of English

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

from The Century Dictionary and Cyclopedia

  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • . To draw forth; excite.
  • Expended; drained; exhausted, as of energy or strength.
  • n. . Same as exhaust-steam.
  • n. Eduction; emission, as of steam from an engine.
  • 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.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

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

Etymologies

Latin exhaurīre, exhaust- : ex-, ex- + haurīre, to draw.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin exhaustus, past participle of exhaurire ("to draw out, drink up, empty, exhaust"), from ex ("out") + haurire ("to draw (especially water), drain"). (Wiktionary)

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