v. t. [ imp. & p. p. Exhausted; p. pr. & vb. n. Exhausting. ] [ L. exhaustus, p. p. of exhaurire; ex out + haurire, haustum, to draw, esp. water; perhaps akin to Icel. asua to sprinkle, pump. ] 1. 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. [ 1913 Webster ]

2. To empty by drawing or letting out the contents; as, to exhaust a well, or a treasury. [ 1913 Webster ]

3. 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. [ 1913 Webster ]

A decrepit, exhausted old man at fifty-five. Motley. [ 1913 Webster ]

4. To bring out or develop completely; to discuss thoroughly; as, to exhaust a subject. [ 1913 Webster ]

5. (Chem.) 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. [ 1913 Webster ]

Exhausted receiver. (Physics) See under Receiver.

Syn. -- To spend; consume; tire out; weary. [ 1913 Webster ]

a. [ L. exhaustus, p. p. ] 1. Drained; exhausted; having expended or lost its energy. [ 1913 Webster ]

2. Pertaining to steam, air, gas, etc., that is released from the cylinder of an engine after having preformed its work. [ 1913 Webster ]

Exhaust draught, a forced draught produced by drawing air through a place, as through a furnace, instead of blowing it through. --
Exhaust fan, a fan blower so arranged as to produce an exhaust draught, or to draw air or gas out of a place, as out of a room in ventilating it. --
Exhaust nozzle,
Exhaust orifice (Steam Engine), the blast orifice or nozzle. --
Exhaust pipe (Steam Engine), the pipe that conveys exhaust steam from the cylinder to the atmosphere or to the condenser.
Exhaust port (Steam Engine), the opening, in the cylinder or valve, by which the exhaust steam escapes. --
Exhaust purifier (Milling), a machine for sorting grains, or purifying middlings by an exhaust draught. Knight. --
Exhaust steam (Steam Engine), steam which is allowed to escape from the cylinder after having been employed to produce motion of the piston. --
Exhaust valve (Steam Engine), a valve that lets exhaust steam escape out of a cylinder. [ 1913 Webster ]

n. (Steam Engine) 1. The steam let out of a cylinder after it has done its work there. [ 1913 Webster ]

2. The foul air let out of a room through a register or pipe provided for the purpose. [ 1913 Webster ]

adj. 1. same as burned-out, 1. [ wns=1+3 ]
Syn. -- burned-out(prenominal), burnt-out(prenominal), burned out(predicate), burnt out(predicate), fagged, fatigued, played-out(prenominal), played out(predicate), spent, washed-out(prenominal), washed out(predicate), worn-out(prenominal), worn out(predicate). [ WordNet 1.5 ]

2. used up; completely consumed. [ wns=2 ][ Narrower terms: gone, expended, spent ] WordNet 1.5 +PJC ]

3. emptied by being pumped out or having a vacuum created. Opposite of unexhausted.
Syn. -- exhausted, evacuated. [ WordNet 1.5 +PJC ]

pos>n. One who, or that which, exhausts or draws out. [ 1913 Webster ]

n. Capability of being exhausted. [ 1913 Webster ]

I was seriously tormented by the thought of the exhaustibility of musical combinations. J. S. Mill. [ 1913 Webster ]

a. Capable of being exhausted, drained off, or expended. Opposite of inexhaustible. Johnson. [ 1913 Webster +PJC ]

a. Producing exhaustion; as, exhausting labors. -- Ex*haust"ing, adv. [1913 Webster]

n. [ Cf. F. exhaustion. ] 1. The act of draining out or draining off; the act of emptying completely of the contents. [ 1913 Webster ]

2. The state of being exhausted or emptied; the state of being deprived of strength or spirits. [ 1913 Webster ]

3. (Math.) An ancient geometrical method in which an exhaustive process was employed. It was nearly equivalent to the modern method of limits. [ 1913 Webster ]

☞ The method of exhaustions was applied to great variety of propositions, pertaining to rectifications and quadratures, now investigated by the calculus. [ 1913 Webster ]

a. Serving or tending to exhaust; exhibiting all the facts or arguments; as, an exhaustive method. Ex*haust"ive*ly, adv. [1913 Webster]