expansion 
The extent of his fathome, or dManre hctwi.xt tli. , \ 
livimty of the llnners "1 either hand Upon rtiiuit 
i i|i^il unto t In 1 spare I let \\i-fH the si.le ill I hi' Int.! and tile 
. roun. Hie T. Hruii'iii', Viils. Krr., Iv. R. 
(i) The act of extending or distending, or of increasing In 
extent, size, bulk, nlilniliit, etc. 
It wan an cj:/ian*ii>ii. an awakening, a ci'ming to inan- 
liuo,l ill il graver fashion. 
II. Jauifx, Jr.. Pass. I'ilgrim, p. '."_IP. 
2. The state of being expanded; enlargement; 
disteutiou; dilatation; increase of extent, size, 
bulk, amount, etc. In the case of the expansion of so] ids 
by heat, account is taken of the im i < -i-"' in l< imth or linear 
expansion, in surface (siipcrllrial expansion), and in volume 
(cubical expansion*. Tin- increment in length of the unit 
for a change of I 1 in temperature, or the rate of increase 
of the unit with the tempenitmv. is calleil tin coeilicicnt 
of linear expansion; and the coefficients oi' superficial and 
cubical expansion, wblch are respectively two and time 
times tin' linear coeilieicnt, are similarly dellned. In the 
case nf liijiiiils and gases the expansion in volume is alone 
considered. The real or ahsolnte expansiuii of a liquid is 
the actual increase in tolunic, while the apparent expan- 
sion is tlmt which is observed when a liquid contained in 
a vessel is heated, and which is less than the real expan- 
sion, because of the simultaneous expansion of the vessel 
itself. It is found that the coefficient of expansion is near- 
ly the same for different gases, and sensibly so for the so- 
called permanent gases, as hydrogen, oxygen, etc. This 
coelllcient is equal to .00:1087 for 1" ("., or alxiut 5^3 that 
is, at 270" ('. tlic volume of a gas expanding under constant 
pressure is double its volume at 0"; and at 273" C. the 
volume would be theoretically zero. This last tempera- 
ture is called the absolute zero. 
Spread not into boundless expanitiojttt either of designs 
or desires. Sir T. Browne, Christ. Mor., i. 19. 
Some remarkable examples of expansion are furnished 
by the influence of sunshine on the Britannia Tubular 
Bridge. Ure, Diet., II. 319. 
Specifically 3. The increase in bulk of steam 
in the cylinder of an engine wlieu its com- 
munication with the boiler is cut off, in which 
case its pressure on the piston retreating be- 
fore it is in inverse ratio to the space it fills. 
4. A. part which constitutes an increase or 
in which the expanding occurs ; specifically, in 
eiitiiin., a flat projection of a margin, generally 
lateral: as, a frontal expansion covering the 
base of the antenna). 5. Extension or spread 
of space ; extent in general ; hence, wide ex- 
tent; immensity. 
It would for ever take an useless flight, 
Lost in exjtaiuion, void and infinite. 
Sir H. Blackmore, Creation. 
Venus, all-bounteous queen, whose genial pow'r 
Diffuses beauty, in unliounded store, 
Through seas and fertile plains, and all that lies 
Beneath the starr'd expansion of the skies. 
Beattie, Lucretius, i. 
Distance or space, In its simple abstract conception, to 
avoid confusion, I call expansion, to distinguish it from 
extension, which by some is used to express this distance 
only as it is in the solid parts of matter, and so includes 
or at least intimates the idea of body. ... I prefer also 
the word expansion to space, because space is often ap- 
plied to distance of fleeting successive parts, as well as to 
those which are permanent. 
Locke, Human Understanding, II. xv. 1. 
6. In math., the development at length of an 
expression indicated in a contracted form, es- 
pecially by means of the distributive principle. 
Ellipsoid Of expansion. Kee ellivtoid. 
expansion-cam (eks-pan'shon-kam), ii. A cam 
used to determine the point of cut-off of a steam- 
engine. 
expansion-curb (eks-pan'shon-kerb), . A con- 
trivance to counteract expansion and contrac- 
tion by heat, as in chronometers. 
expansion-drum (eks-pan'shon-drum), n. In 
much., a drum of adjustable diameter used with 
a. Expansion-drum. 
a belt to effect changes as desired in the speed 
of machinery. The drum consists of a central base and 
several radiating arms, which can be moved in or out, 
the belt passing over curved plates at the end of the arms. 
expansion-engine (eks-pan'shon-en"jin), . A 
steam-engine in which the supply of steam is 
cut off previous to the completion of the stroke, 
the expansive power of the steam admitted be- 
ing sufficient to complete the stroke. Triple ex- 
pansion-engine, a stcam-enu'inc in which steam is ex- 
panded in three cylinders in succession, the exhaust from 
the th-it driving the piston of the second, and so on. 
expansion-gear (eks-pnu'shon-gor), . In a 
steam-engine, all those parts of the mechanism 
that control the admission of the live steam 
from the boiler to the main valve-system and 
thus to the cylinder. The expansion gear is inter- 
mediate between the actual controlling system of mecha- 
nism, which makes the engine automatir. and the steam, 
2076 
controlling the automatir system by Independent eccentric 
systems that may be ant atic or may be controlled by 
th governor or by apj>li:nn s practically outside the - n- 
gine. The ellect of tin- siippl. meiitary system is to cut 
"It the supply of steam to the slid< \al\< - at ,cn\ required 
point of the stroke, for the purpose of using the expansion 
of the steam already admitted to finish the stroke. This 
cut-olf of the steam may le variable where the expansion 
admits of it, changing the |>int of cut-off at will while the 
. n-ine is at work ; it may be lixed or seemed at some pre- 
determined point of the stroke; or it may be automat ie or 
uelt varying. The most common apparatus Include* an ex- 
pansion-valve moving on the slide valve and controlled by 
an eccentric cam on the shaft or by the governor. See no- 
o/'and lintf-iniition. 
expansion-joint (eks-pan'shon-joint), n. In 
xti-iini-ciujiu. : (n) Any kind of joint for connect- 
ing steam-pipes which permits the pipe to ex- 
pand or contract under varying temperatures 
without increase of its length over all. (6) An 
attachment of a boiler in its framing to allow 
the former to expand without affecting the lat- 
ter. 
expansion-valve (eks-pan'shon-valv), n. In 
a steam-engine, a valve which shuts off the 
steam in its passage to the slide-valves when 
the piston has traveled a certain distance in 
the cylinder, leaving the remaining part of the 
stroke to be performed by the expansion of the 
steam. See expansion-gear. 
expansive (eks-pan'siv), a. [= F. expansif=z 
Sp. Pg. expansivo, < L. expansus, pp. of expan- 
ilere, spread out : see expand, expanse.] 1. Ca- 
pable of causing or effecting expansion: as, the 
expansive force of heat. 
This Internal pressure, resulting from the solidifying of 
the fluid particles in the interstices of the ice, acts on the 
mass of the Ice as an expansive force. 
./. Crull, Climate and Cosmology, p. 263. 
2. Capable of being expanded, or of expanding 
or spreading out in volume or extent ; dilata- 
ble : as, the expansive quality of air ; expansive 
gases or substances. 
Then no more 
Th' expttmtire atmosphere is cramp'd with cold; 
But, full of life and vivifying soul, 
Lifts the light clouds sublime. Thomson, Spring. 
3. Embracing a large number of objects or par- 
ticulars; wide-extending; comprehensive: as, 
expansive benevolence ; an expansive outlook. 
A distant view of yEgina and of Megara, of the Pineus 
and of Corinth, . . . melted the soul of an ancient Ro- 
man, for a while suspended his private sorrows, and ab- 
sorbed his sense of personal affliction in a more expan- 
<> and generous compassion for the fate of cities and 
states. Euttace, Tour through Italy, x. 
4. Comprehensive in feeling or action; sym- 
pathetic ; effusive. 
We English "are not an expatuite people," and so we 
seldom use the word poor in a sentimental sense of the 
living, though we do so use it of the dead. 
A", and Q., 6th ser., X. 474. 
Expansive balance. See balance. 
expansively (cks-pan'siv-li), adv. In an ex- 
pansive manner ; by expansion, 
expansivenessfeks-pan'siv-nes), n. The qual- 
ity of being expansive. 
Her talk was charming, bright, eager, full of a fine ex- 
jMMffMHMfc Sew Princeton Rev., II. 81. 
expansivity (eks-pan-siv'i-ti), . [< expansive 
+ -ity.] The state or quality of being expan- 
sive; expansiveness. [Rare.] 
In a word, offences (of elasticity or expansivity) have ac- 
cumulated to such height in the lad's fifteenth year that 
there is a determination taken on the part of Rhadaman- 
thns-Scritilerus to pack him out of doors. 
Carlyle, Misc., IV. 87. 
expansuret (eks-pan'gur), n. [< expanse + -tire.] 
Expanse. 
Now love in night, and night in love exhorts 
Courtship and dances : all your parts employ, 
And suit night's rich expansure with your joy. 
Marlowe and Chapman, Hero and Leander. 
ex parte (eks par'te). [L., from a part: er, 
out of, from ; parte, abl. of par(t-)s, a part: see 
party.] With reference to or in connection with 
only one of the parties concerned: as, the re- 
spondent being absent, the case was proceeded 
with ex parte. 
ex-parte (eks-par'te), a. [< ex parte.] In Jaw, 
proceeding from or concerned with only one 
part or side of a matter in question: with ref- 
erence to any step taken by or on behalf of one 
of the parties to a suit or in any judicial pro- 
ceeding without notice to the other: as, an ex- 
parte application ; an ex-parte hearing; ex-parte 
evidence. Ex-parte hearings, evidence, etc., are often 
resorted to for temporary relief, or for convenience and 
ex|K'dition, and are not supposed to affect the substantial 
rights of the absent party. But outside of legal use the 
term often insinuates partiality or deficient accuracy : as, 
a mere ex-iiarte statement. Ex-parte council, in Con- 
gngotUmutim. aeonncil called byoneof the parties con- 
cerned in acontrovcl'sy when the other party or the church 
refuses to cooperate in calling u mutual council. 
expect 
Councils are of two kinds mutual and ex-parte. A 
mutual count il is ne in the calling of which all parties 
to the difficulty or perplexity concerning which relief 1s 
sought unite. An ex-parte council is one which U called 
by one of those parties, after every proper effort to induce 
all interested to call a mutual council has failed. 
//. M. Dexter, Congregationalism (ed. 1865), p. 64. 
expatiate (cks-pa'shi-at), r. ; pret. and pp. ex- 
/iiiiin//'(l, p]ir. ujiiiit/itui(/. [< L. expatiatus, ex- 
iliiitinttts, pp. oiexpatiari, exspatiari, go out of 
tne course, wander, digress, enlarge, < ex, out, 
4- spatiari, walk, take a walk, roam, < spattvm, 
space: see space.] I. intrans. 1. To move at 
large ; rove without prescribed limits ; wander 
without restraint. 
I never turn llrd but in map or card, in which my un- 
couflncd thoughts have freely jfnti<iied. 
l.n,r,,,,, Anat. of Mel., To the Reader, p. 16. 
Bids his free soul expatiate in the skiea. 
Pope, Windsor Forest, L 254. 
Religion contracts the circle of our pleasures, but leaven 
It wide enough for her votaries to expatiate therein. 
Addiiun, Spectator, No. 4'M. 
Like winter flies, which In mild weather crawl out from 
obscure nooks anil crannies to expatiate in the sun. 
Loicelt, Biglow Papers, 2d ser., p. 79. 
2. To enlarge in discourse or writing; be co- 
pious in argument or discussion: with on or 
[lie] talked with ease, and could expatiate upon the com- 
mon topics of conversation with fluency. 
(ioldtiaith, Vicar, vll. 
The passions of kings are often expatiated on ; but, In 
the present anti-monarchical period [time of Charles I.J, 
the passions of parliaments are not imaginable ! 
/. D Israeli, Curios, of Lit., IV. 380. 
II. trans. To allow to range at large; give 
free exercise to ; expand; broaden. [Bare.] 
How can a society of merchants have large minds, and ex- 
fii tin'.' their thoughts for great and publick undertakings, 
whose constitution is subject to such frequent changes, 
and who every year run the risk of their capital? 
C. Davenant, Essays on Trade, II. 421. 
expatiation (eks-pa-shi-a'shon), M. [< expatiate 
+ -ion.] The act of expatiating. 
Take them from the devil's latitudes and expatiationi ; 
. . . from the infinite mazes and bypaths of error. 
Farindon, Sermons (1647), I. ii. 
expatiator (eks-pa'shi-a-tor), n. [< expatiate 
+ -or.] One who enlarges or amplifies in lan- 
guage. 
The person intended by Montfaucon as an expatiator on 
the word "Endovellicus I presume is Thomas Reinesius. 
Pfatje, Anonymiana, p. 201. 
expatiatory (eks-pa'shi-a-to-ri), a. [< expa- 
tiate + -ory.] Expatiating; amplificatory. Bis- 
xett. 
expatriate (eks-pa'tri-at), r. t. ; pret. and pp. 
expatriated, ppr. expatriating. [< ML. expatri- 
atus, pp. of expatriare (> It. spatriare = Sp. 
Pg. expatriar = F. expatrier), banish, < L. ex, 
out of, + patria, one's native country, father- 
land, < pater = E. father: see patriot. Ct. de- 
patriate, repair 2 .] 1. To banish; send out of 
one's native country. 
The allied powers possess also an exceedingly numerous, 
well-informed, sensible, ingenious, high-principled, and 
spirited Ixxiy of cavaliers in the expatriated landed in- 
terest of France. llurke. Policy of the Allies. 
2. Reflexively, to withdraw from one's native 
country; renounce the rights of citizenship 
where one was born, and become a citizen of 
another country. 
expatriation (eks-pa-tri-a'shon), n. [= P. ex- 
piitrintion = Sp. expatriacion == Pg. expatriafSo, 
< ML. as if 'expatriatio(ti-), < expatriare, pp. ex- 
patnatus, expatriate: see expatriate.] 1. The 
act of banishing, or the state of being banished ; 
banishment. 
Expatriation was a heavy ransom to pay for the right* 
of their minds and souls. I'aljrey. 
2. In law, the voluntary renunciation of one's 
nationality and allegiance, by becoming a citi- 
zen of another country. The right of expatriation, 
or the right voluntarily to change one's allegiance, so as 
to be free from the obligation of natural allegiance, was 
formerly denied in England, and doubted by jurists in 
the I'nitcd States, although always maintained politically 
in the latter country; it was finally established by Con- 
gress in 1SU8, and by Parliament In 1870. In other civil- 
ized countries it had previously been conceded, w ith some 
specific limitations. 
expect (eks-pekf), v. [= OF. expecter, espee- 
ter = It. espettarc, < L. expectare, cxspectart, 
look for, await, anticipate, expect, < ex, out, + 
spectare, look : see spectacle. Cf . aspect, inspect, 
pronpi-t-t. respect, suspect] I. trans. 1. To look 
for; wait for; await. [Archaic.] 
The guards, 
By me eneamp'd on yonder hill, expect 
Their motion. Hiltun, P. L, xii. 591. 
