exhaust 
compressed, ttiis cushion of steam will finally nil the Vol- 
ume of tin- clearan.-c : anil l.,\ .1 pl'i|>iT -i lection of tlltl 
|Wlillt at Which l-.llllpl. tin' p|-'>-lllr (if tile 
cushion may In- mailc tn ii-c jn-t up tu tin- pri ssure at 
wlili'li steam is admitted when tin' vain- opens. 
Km-tir. lli'il., XXII. 4-7. 
exhaust-chamber (e^-zast'eham'ber), . A 
c.hainbcr or compartment in the smoke-box of 
a locomotive, so situated as to prevent unequal 
draft of the tubes. 
exhauster (eg-xas'ter), . One who or that 
which exhausts; specifically, in ijiis-iiniking, a 
device for in-eventing the reflex pressure of 
gas upon the rotmts. 
exhaust-fan (eg-zast'fan), >i. A fan used for 
(.routing a draft by the formation of a partial 
vacuum, in contradistinction to a l>//nn r. 
exhaustible (<>g-zas'ti-bl), n. [< exhaust + 
-iMr.] Capable of being exhausted, drained off, 
consumed, or used up. 
Though employed with profusion, .mil oven with prodi- 
gality, yctltssuin total a definite ami caMl) i-.rliiinn'i. 
l>lf. Kuiitare, Tour through Italy, xil. 
exhaustibility (eg-zas-ti-bil'i-ti), n. [X ex- 
haustible.: see -bility.~) The quality of being ex- 
haustible; the capability of being exhausted. 
exhausting (eg-zas'ting), j>. a. Tending to ex- 
haust, enfeeble, or drain the strength: as, ex- 
hausting labor. 
The study of the principles of government Is the most 
profound and exhnnst!it'i f any which can engage the 
human mind. Story, Mine. Writings, p. (IKS. 
exhaustion (eg-zas'tyon),)!. [= F. exhaustion, < 
L. as if "exhaustio(n-),<.exhaurire, pp. exhaustus, 
exhaust: s, > r,r/,,ni.i/.] 1. The act of exhaust- 
ing, or of drawing out or draining off ; the act 
of emptying completely of the contents. 
I found, hy the long me of two or three physicians, the 
exhaustion of my purse as great as other evacuations. 
,s'iY //. U'liitini, liflic|iiia<, p. 561. 
2. The state of being exhausted or emptied, or 
of being deprived of strength or energy. 
Great exhaustion* cannot he cured with sudden reme- 
dies, no more in a kingdom than in a natural Iwdy. 
Sir It, WottoH, Reliquim, p. 334. 
Specifically 3. In genm., a method formerly 
used for demonstrating the properties of curvi- 
linear areas. Two such areas, as P and Q, being 
given, it is shown that there is a series of rectilinear 
constructions, xi, Xg, etc., all less than P, but each after 
the first diiferintf from it hy less than half as much as 
the one preceding It in the series, suppose there is an- 
other series of constructions, yi, yo, etc., related in the 
same way to Q. Then, if x, : y t ="XQ : y 3 = etc., it will 
follow that \ i : \ i !':<;. The standard example of this 
method is the second proposition of the twelfth book of 
Euclid. 
4. In logic, a method of proof in which all the 
arguments tending to an opposite conclusion are 
brought forward, discussed, and proved unten- 
able or absurd, thus leaving the original propo- 
sition established by the exclusion of every al- 
ternative. 5. In physics, the act of removing 
the air from a receiver, as by an air-pump, or 
the extent to which the process has been carried. 
A man thrusting in hisarme [into Boyle's vacuum] ii|M>n 
exhauttu>n of y* airc, had his tlesh immediately swelled 
so as the hloud was neare bursting the velnes. 
Evelyn, Memoirs, May 7, 1661 
6. In diem., the process of completely extract- 
ing from a substance whatever is removable 
by a given solvent, or the state of being thus 
completely deprived of certain soluble matters. 
If the precipitate, after rxhiHulion with boiling alcohol, 
is treated witli boiling water, the latter dissolves a con- 
siderable quantity of the liody in o,ne-iion. 
1C. Crimti'i, Dyeing and Calico-printing, n. :i-J. 
exhaustive (eg-zas'tiv), n. [< exhaust + -iir.] 
Exhausting; tending to exhaust; exhausting 
all parts or phases; thorough: specifically ap- 
plied to a disquisition, treatise, criticism, etc.. 
which treats of a subject in such a way as to 
leave no part of it uuexamined. 
An i-jcfianittifi- fulness of sense. Coleridije. 
In so far as his knowledge of the pliysical ami chemical 
properties of matter is ttAttutfM, . . . his conclusions 
. . . will in- rorrect. ./. Flstce, Evolutionist, p. 197. 
exhaustively (eg-zas'tiv-li), a<li\ In an OXT 
liauslivc manner; in such a manner as to leave 
no point of a subject uncxatniued; thoroughly: 
as, ne treated the subject exhaust/rely. 
New methods of preparation are constantly revealing 
no\flties in whole classes of objects which (it was sup- 
posed) had been already ^tudicd ,.<//. /;/*r/v,/,/. 
'. 11. Cur/.. ni,r. Mi. n.s., j 54. 
exhaUStiveness (eg-zns'tiv-iiesl, . The qual- 
ity or slate of lieini; c'xliauslive. 
A distinguisliini." charaetiTi-tic .if all these papers is the 
extatuttMnoM "ith which the snhjeeta deemed worthy of 
consideration are anal wed and discussed. 
An,,f. .I::,,,: N,-,., lid MT., XXIX. II'A 
2067 
An Injudicious in. Hi. ill of ti aching, which confounds 
thoroughness with ex/Mttnticene^n. 
(piloted in HV,f,,,//,./,-r li,-r.. c \\\ II. .'i. r >. 
exhaustless (eg-zast'les), a. [< exhaust + -less.] 
Incapable of being exhausted; that cannot be 
wholly expended, consumed, or emptied ; inex- 
haustible : as, an exhaustlvs fund or store. 
So with iiiperiour boon may your rich soil, 
i:\iilicrant, nature's better blessing* pour 
O'er ev'ry laud, the naked nations clothe, 
And lit- thu txhautlless granary of a world. 
Tli' i/iix./i, spring. 
The exhawtUem mine of corruption opened by the pre- 
cedent ... of the late payment of the debts of the civil 
list. Burke, Present Discontents. 
exhaustmentt (eg-zast'ment), n. [< exhaust + 
-mi ni. \ Exhaustion; draft or drain upon a 
thing. 
This bishoprlck fis) already very meanly endowed In 
regard of the continual charge and erhduxtntriitx of the 
place. Cabbala, Dr. Williams, to the Duke. 
exhaust-nozle (eg-zast'noz'l), n. 1. In loco- 
motive and some other steam-engines, the blast- 
nozle or -orifice which discharges exhaust-steam 
into the uptake to make a forced draft. 2. A 
device for silencing the noise occasioned by 
the escape of exhaust-steam, or the steam of an 
ejector used with a vacuum-brake ; a quieting- 
chamber. 
exhaust-pallet (eg-zast'pal'et), n. In organ- 
buildini/, a pallet or valve in the bellows by 
which the air may be rapidly let out. Also 
called exhaiist-riiln: 
exhaust-pipe (eg-zast'pip), . In a steam- 
engine, tne pipe that conveys waste steam from 
the cylinder to the condenser, or through which 
it escapes to the atmosphere. 
exhaust-port (eg-zast'port), n. In a steam- 
engine, tne exit passage for the steam from a 
cylinder. 
exhaust-steam (eg-zast'stem), n. The steam 
allowed to escape from the cylinder of an en- 
gine after it has produced motion of the pis- 
ton. Also called exhaust. 
exhausturet (eg-zas'tur), n. [< exhaust + -i<rc.~\ 
Exhaustion. 
To the absolute exhawtture of our own magazines. 
Jefferson, Correspondence, I. 199. 
exhaust- valve (eg-zast'valv), n. 1 . In a steam- 
engine, the valve which regulates the passage 
of waste steam from the cylinder; a valve in 
the eduction-passage of the steam-cylinder of 
an engine, placed between the cylinder and the 
air-pump, and operated by the tappet-motion, 
so as to open shortly after the equilibrium- 
valve, and admit the steam to the condenser. 
Wcale. 2. Same as exhaust-pallet. 
exhedra, . See exedra. 
exheredate (eks-her'e-dat), r. t. [< L. exhereda- 
tus, pp. of cxheredare (> It. eseredare = Sp. ex- 
heredar = Pg. exhcrdar = F. exhereder), disin- 
herit, < exheres (exhered-), disinherited, a disin- 
herited person, < ex- priv. + heres, an heir: see 
heir, hereditary.] To disinherit. 
Madam, . . . though exheridated and disowned, I am 
yet a Douglas. Scott, Abbot, II. 222. 
exheredation (eks-her-e-d'shon), M. [= F. 
cxheredation = Sp. exlier'ediicion "= Pg. exlierda- 
cSo, < L. exlteredatio(n-), < rxhercdare, disin- 
herit: see exheredate.) In Rom. lair, a disin- 
heriting ; the act of a father in excluding a child 
from inheriting any part of his estate. 
I shall first demand whether sons may not lawfully and 
reasonably fear punishment from their parents. In case 
they shall deserve it, even the greatest punishment, ex- 
hfredation, and casting out of the family, upon their con- 
tinuing disobedient anil refractory to their father's com- 
mands, //aim/torn/, Works, II. ii. 144. 
exhibit (eg-zib'it), v. [< L. exhibitus, pp. of ex- 
hiliere (> It. csilrire = Sp. Pg. cxhibir = F. cxhi- 
!><>), hold forth, present, show, display, < ex, out, 
-I- haberc, hold, have : see habit. Cf. inhibit, /ini- 
liihit.} I. trans. 1. To offer or present to view; 
present for inspection ; place on show : as, to 
exhibit paintings; to exhibit an invention; to 
exhibit documents in court. 
Tournament* and justs were usually exhibited at coro- 
nations, royal marriages, and other occasions of solemnity 
where pomp and pageantry were thought to be requisite. 
Strvtt, S|, r ts ami Pastimes, p. 12. 
The first thing men think of, when they love. Is to ex. 
liiiiil their usefulness and ad vantages to the object of their 
affection. Km'r&in, Woman. 
2. To display; manifest conspicuously; bring 
to light; furnish or constitute: as, to exhibit 
an example of bravery or generosity. 
l ine of an unfortunate ronsnriitiou is periH'tually fxhib- 
itni'i a miserable example of the weakness of mind and 
iKxIy. pope. 
exhibition 
The dispersion of the colours of the nolar rays Is exhib- 
ited on the most magnificent scale by -Nature heinelf in 
the splendid phenomenon of the rainlww. 
L'ntimel, Light (trans.), p. 122. 
A sudden and severe demand develops as well as exhib- 
it* latent forces, but it cannot create what had no pte\ ions 
existence. II. X. Oienlium, >hort .-Indies, p. in;. 
3. To present for consideration ; bring forward 
publicly or officially ; make a presentation of. 
[Obsolete or archaic.] 
Why, I'll exhibit a bill in the parliament for the putting 
down of men. Mat., M. W. of \V., il. I. 
We shall, by the merit and excellency of this oblation, 
-.rfii/iit t (iod an otlcrtory In which lie cannot but de- 
light. Jer. Taylor, Works (ed. 1835), I. 64. 
He suffered his attorney-general to exhibit a charge of 
high treason against the earl. Clarendon, Great Rebellion. 
4. In nied., to administer, as a specified drug. 
5. In English universities, to hold forth (a 
foundation or prize) to be competed for by can- 
didates. 6. To present or declaim (a speech 
or an essay) in public. 
If any student shall fail to perform the exercise assigned 
him, or shall exhibit anything not allowed by the Faculty, 
he may be sent home. Laic* nf Yale College, (1837), p. 1H. 
II. intrans. 1. To make an exhibition; open 
a show; present something to public view: as, 
to exhibit at the Academy. 2. In universities, 
to offer or present an exhibition. [Eng.] 3. 
To present an essay in public ; speak in public 
at an exhibition or college commencement. 
No student who shall receive any appointment to ex- 
hibit before the class, the College, or the public, shall give 
any treat or entertainment to his class. 
Lam of Yale College (1837), p. 29. 
exhibit (eg-zib'it), n. [< exhibit, r.] 1. Any- 
thing or any collection of things exhibited pub- 
licly : as, the Japanese exhibit in the Paris Ex- 
position. 2. A showing; specifically, a writ- 
ten recital or report showing the state of any 
matter at a particular date, as of the estate of 
a bankrupt, etc. 
What kind of historical development of the articular In- 
finitive do we find between Thukydides am) Demosthenes? 
'I he chronological exhibit is crossed all the time by the 
law of the department, by the fancy of the individual. 
Amer. Jour. PhilrA., VI. 54. 
3. In late , a paper attached to a contract, plead- 
ing, affidavit, or other principal instrument, 
identified in and referred to by it ; a document 
offered in evidence in an action, and marked 
to identify it or authenticate it for future ref- 
erence. 
He [Gardiner] put in several other exhibits, and among 
them his book against Cranmer on the Sacrament. 
R. W. Diion, Hist. Church of Eng., xvili. 
= Syn. 1. See exhibition. 
exhibitant (eg-zib'i-tant), n. [< exhibit + -ant.'] 
In law, one who makes an exhibit, 
exhibitor (eg-zib'i-ter), n. One who exhibits. 
See exhibitor. 
He seems indifferent: 
Or, rather, swaying more upon our part 
Than cherishing the extiWitfrs against us. 
Slialc., Hen. V., L I. 
exhibition (ek-si-bish'on). n. [= F. exhibition 
= Sp. exhibicion = Pg. exhibic.a'o = It. esibi:ione, 
< LL. exhibitio(n-), a handing out, giving up, 
sustenance (mod. senses from the mod. verb). < 
exhibere, present, exhibit : see exhibit.] 1. The 
act of exhibiting or displaying for inspection ; 
a showing or presenting to view. 
We may be assured, gentlemen, that he who really love 
the thing itself loves its finest exhibitimu. 
D. Webster, Speech, Feb. 22, 1832. 
2. The producing or showing of titles, author- 
ities, or papers of any kind before a tribunal, 
in proof of facts; hence, in Scots latr, an ac- 
tion for compelling delivery of writings. 3. 
That which is exhibited; a show; especially, a 
public show or display, as of natural or artificial 
productions, or of personal performances: as, 
an international or universal exhibition (of pro- 
ductions and manufactures); a school exhibi- 
tion ; an athletic or dramatic exhibition. 
Ode sung at the Opening of the International Exhibition. 
Tennyvon (title of poem). 
4. In nied., the act of administering as a reme- 
dy: as, the exhibition of stimulants. 6t. An 
allowance for subsistence ; a provision of 
money or other things ; stipend; pension. 
Thou art a younger brother, and hast nothing but thy 
bare exhibition. B. Jnnxon, Poetaster, i. 1. 
Page, ill you follow me ? Ill give yon good exhibition. 
B. Jon*on, Case is Altered, v. 2. 
My son lives here in Naples, and in 's riot 
Doth far exceed the exhibition I allowed him. 
Webster, Devil's Law-Case, II. 1. 
Hence 6. A benefaction settled for the main- 
tenance of scholars in English universities, 
