- The definition of exhaust is the release of used steam or gas.
An example of exhaust is what comes out of a car's tail pipe.
- To exhaust is defined as to use up, tire out or discharge.
An example of to exhaust is someone draining their savings account.
Exhaust fumes from numerous automobiles.
- to draw off or let out completely (air, gas, etc.), as from a container
- to use up; expend completely: to exhaust one's resources
- to empty completely; draw off the contents of; drain: to exhaust a well
- to create a vacuum in
- to drain of power, resources, etc.: war exhausted the nation
- to tire out; make very weary; weaken
- to deal with, study, or develop completely and thoroughly: to exhaust a subject
Origin of exhaust; from Classical Latin exhaustus, past participle of exhaurire, to draw out, exhaust ; from ex-, out + haurire, to draw, drain ; from Indo-European base an unverified form aus- from source Old Norse ausa
- the withdrawing of air, gas, etc. from a container or enclosure, as by means of a fan or pump
- an apparatus for doing this, as in getting rid of fumes, dust, stale air, etc.
- the discharge or release of used steam, gas, etc. from a steam or gas turbine or from the cylinders of an engine at the end of every working stroke of the pistons
- the system of pipes, including mufflers, catalytic converters, etc. through which such steam, gas, etc. is released
- something given off or let out, as fumes from a gasoline engine
verbex·haust·ed, ex·haust·ing, ex·hausts
- To make extremely weary; wear out. See Synonyms at tire1.
- a. To remove a resource from; deplete: tobacco crops that exhausted the soil of nutrients.b. To use up completely: a costly project that exhausted our funds. See Synonyms at deplete.
- To discuss or treat completely; cover thoroughly: exhaust a topic.
- a. To let out the contents of (a container); cause or allow to escape: a leak that exhausted the air tank.b. To let out or draw off (a gas, for example) from a container.
- a. The escape or release of vaporous waste material, as from an engine.b. The fumes or gases so released.
- A duct or pipe through which waste material is emitted.
- An apparatus for drawing out noxious air or waste material by means of a partial vacuum.
Origin of exhaustLatin exhaurīre, exhaust- : ex-, ex- + haurīre, to draw.
(third-person singular simple present exhausts, present participle exhausting, simple past and past participle exhausted)
- 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.
- To empty by drawing or letting out the contents; as, to exhaust a well, or a treasury.
- 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.
- A decrepit, exhausted old man at fifty-five. --Motley.
- To bring out or develop completely; to discuss thoroughly; as, to exhaust a subject.
- (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.
- A system consisting of the parts of an engine through which burned gases or steam are discharged; see also exhaust system.
- The steam let out of a cylinder after it has done its work there.
- The foul air let out of a room through a register or pipe provided for the purpose.
- An exhaust pipe, especially on a motor vehicle.
- Short for exhaust gas.
- (obsolete) Exhausted; used up.