Chapter 534

E`qui*lib"ri*ty (?) , n. [L. aequilibritas equal distribution. See Equilibrium .] The state of being balanced; equality of weight. [R.]

J. Gregory.

Equilibrium <Xpage=504>

E`qui*lib"ri*um (?) , n. ; pl. E. Equilibriums (#) , L. Equilibria (#) . [L. aequilibrium , fr. aequilibris in equilibrium, level; aequus equal + libra balance. See Equal , and Librate .]

1. Equality of weight or force; an equipoise or a state of rest produced by the mutual counteraction of two or more forces.

2. A level position; a just poise or balance in respect to an object, so that it remains firm; equipoise; as, to preserve the equilibrium of the body .

Health consists in the equilibrium between those two powers. Arbuthnot.

3. A balancing of the mind between motives or reasons, with consequent indecision and doubt.

Equilibrium valve (Steam Engine) , a balanced valve. See under Valve .

Equimomental <Xpage=504>

E`qui*mo*men"tal (?) , a. [ Equi- + momental .] (Mech.) Having equal moments of inertia.

&hand; Two bodies or systems of bodies are said to be equimomental when their moments of inertia about all straight lines are equal each to each.

Equimomental cone of a given rigid body , a conical surface that has any given vertex, and is described by a straight line which moves in such manner that the moment of inertia of the given rigid body about the line is in all its positions the same.

Equimultiple <Xpage=504>

E`qui*mul"ti*ple (?) , a. [ Equi- + multiple : cf. F. \'82quimultiple .] Multiplied by the same number or quantity.

Equimultiple <Xpage=504>

E`qui*mul"ti*ple , n. (Math.) One of the products arising from the multiplication of two or more quantities by the same number or quantity. Thus, seven times 2, or 14, and seven times 4, or 28, are equimultiples of 2 and 4.

Equinal <Xpage=504>

E*qui"nal (?) , a. See Equine . "An equinal shape."

Heywood.

Equine <Xpage=504>

E"quine (?) , a. [L. equinus , fr. equus horse; akin to Gr. <?/, Skr. a<?/va , OS. ehu , AS. eh , eoh , Icel. j<?/r , OIr. ech , cf. Skr. a<?/ to reach, overtake, perh. akin to E. acute , edge , eager , a. Cf. Hippopotamus .] Of, pertaining to, or resembling, a horse.

The shoulders, body, things, and mane are equine ; the head completely bovine. Sir J. Barrow.

Equinia <Xpage=504>

E*quin"i*a (?) , n. [NL. See Equine .] (Med.) Glanders.

Equinoctial <Xpage=504>

E`qui*noc"tial (?) , a. [L. aequinoctials , fr. aequinoctium equinox: cf. F. \'82quinoxial . See Equinox .]

1. Pertaining to an equinox, or the equinoxes, or to the time of equal day and night; as, the equinoctial line .

2. Pertaining to the regions or climate of the equinoctial line or equator; in or near that line; as, equinoctial heat; an equinoctial sun.

3. Pertaining to the time when the sun enters the equinoctial points; as, an equinoctial gale or storm, that is, one happening at or near the time of the equinox, in any part of the world .

Equinoctial colure (Astron.) , the meridian passing through the equinoctial points. -- Equinoctial line (Astron.) , the celestial equator; -- so called because when the sun is on it, the nights and days are of equal length in all parts of the world. See Equator .

Thrice the equinoctial line He circled. Milton.

- Equinoctial points (Astron.) , the two points where the celestial and ecliptic intersect each other; the one being in the first point of Aries, the other in the first point of Libra. -- Equinoctial time (Astron.) reckoned in any year from the instant when the mean sun is at the mean vernal equinoctial point.

Equinoctial <Xpage=504>

E`qui*noc"tial , n. The equinoctial line.

Equinoctially <Xpage=504>

E`qui*noc"tial*ly , adv. Towards the equinox.

Equinox <Xpage=504>

E"qui*nox (?) , n. [OE. equinoxium , equenoxium , L. aequinoctium ; aequus equal + nox , noctis , night: cf. F. \'82quinoxe . See Equal , and Night .]

1. The time when the sun enters one of the equinoctial points, that is, about March 21 and September 22. See Autumnal equinox , Vernal equinox , under Autumnal and Vernal .

When descends on the Atlantic The gigantic Stormwind of the equinox . Longfellow.

2. Equinoctial wind or storm. [R.]

Dryden.

Equinumerant <Xpage=504>

E`qui*nu"mer*ant (?) , a. [ Equi- + L. numerans , p. pr. of numerare to number.] Equal as to number. [Obs.]

Arbuthnot.

Equip <Xpage=504>

E*quip" (?) , v. t. [ imp. & p. p. Equipped (?) ; p. pr. & vb. n. Equipping .] [F. \'82quiper to supply, fit out, orig. said of a ship, OF. esquiper to embark; of German origin; cf. OHG. scif , G. schiff , Icel. skip , AS. scip . See Ship .]

1. To furnish for service, or against a need or exigency; to fit out; to supply with whatever is necessary to efficient action in any way; to provide with arms or an armament, stores, munitions, rigging, etc.; -- said esp. of ships and of troops.

Dryden.

Gave orders for equipping a considerable fleet. Ludlow.

2. To dress up; to array; accouter.

The country are led astray in following the town, and equipped in a ridiculous habit, when they fancy themselves in the height of the mode. Addison.

Equipage <Xpage=504>

Eq"ui*page (?; 48) , n. [F. \'82quipage , fr. \'82quiper . See Equip .]

1. Furniture or outfit, whether useful or ornamental; especially, the furniture and supplies of a vessel, fitting her for a voyage or for warlike purposes, or the furniture and necessaries of an army, a body of troops, or a single soldier, including whatever is necessary for efficient service; equipments; accouterments; habiliments; attire.

Did their exercises on horseback with noble equipage . Evelyn.

First strip off all her equipage of Pride. Pope.

2. Retinue; train; suite.

Swift.

3. A carriage of state or of pleasure with all that accompanies it, as horses, liveried servants, etc., a showy turn-out.

The rumbling equipages of fashion . . . were unknown in the settlement of New Amsterdam. W. Irving.

Equipaged <Xpage=504>

Eq"ui*paged (?) , a. Furnished with equipage.

Well dressed, well bred. Well equipaged , is ticket good enough. Cowper.

Equiparable <Xpage=504>

E*quip"a*ra*ble (?) a. [L. aequiparabilis .] Comparable. [Obs. or R.]

Equiparate <Xpage=504>

E*quip"a*rate (?) v. t. [L. aequiparatus , p. p. of aequiparare .] To compare. [R.]

Equipedal <Xpage=504>

E*quip"e*dal (?) , a. [ Equi- + L. pes , pedis , foot.] (Zo\'94l.) Equal-footed; having the pairs of feet equal.

Equipendency <Xpage=504>

E`qui*pend"en*cy (?) , n. [ Equi- + pendency .] The act or condition of hanging in equipoise; not inclined or determined either way.

South.

Equipensate <Xpage=504>

E`qui*pen"sate (?) , v. t. [ Equi- + pensatus , p. p. of pensare to weigh. Cf. Equipoise .] To weigh equally; to esteem alike. [Obs.]

Equipment <Xpage=504>

E*quip"ment (?) , n. [Cf. F. \'82quipement . See Equip .]

1. The act of equipping, or the state of being equipped, as for a voyage or expedition.

Burke.

The equipment of the fleet was hastened by De Witt. Hume.

2. Whatever is used in equipping; necessaries for an expedition or voyage; the collective designation for the articles comprising an outfit; equipage; as, a railroad equipment (locomotives, cars, etc. ; for carrying on business); horse equipments ; infantry equipments ; naval equipments ; laboratory equipments .

Armed and dight, In the equipments of a knight. Longfellow.

Equipoise <Xpage=504>

E"qui*poise (?) , n. [ Equi- + poise .]

1. Equality of weight or force; hence, equilibrium; a state in which the two ends or sides of a thing are balanced, and hence equal; state of being equally balanced; -- said of moral, political, or social interests or forces.

The means of preserving the equipoise and the tranquillity of the commonwealth. Burke.

Our little lives are kept in equipoise By opposite attractions and desires. Longfellow.

2. Counterpoise.

The equipoise to the clergy being removed. Buckle.

Equipollence, Equipollency <Xpage=504>

E`qui*pol"lence (?) , E`qui*pol"len*cy (?) , n. [Cf. F. \'82quipollence . See Equipollent .]

1. Equality of power, force, signification, or application.

Boyle.

2. (Logic) Sameness of signification of two or more propositions which differ in language.

Equipollent <Xpage=504>

E`qui*pol"lent (?) , a. [L. aequipollens ; aequus equal + pollens , -entis , p. pr. of pollere to be strong, able: cf. F. \'82quipollent .]

1. Having equal power or force; equivalent.

Bacon.

2. (Logic) Having equivalent signification and reach; expressing the same thing, but differently.

Equipollently <Xpage=504>

E`qui*pol"lent*ly , adv. With equal power.

Barrow.

Equiponderance, Equiponderancy <Xpage=504>

E`qui*pon"der*ance (?) , E`qui*pon"der*an*cy (?) , n. [ Equi- + ponderance : cf. F. \'82quipond\'82rance .] Equality of weight; equipoise.

Equiponderant <Xpage=504>

E`qui*pon"der*ant (?) , a. [Cf. F. \'82quipond\'82rant .] Being of the same weight.

A column of air . . . equiponderant to a column of quicksilver. Locke.

Equiponderate <Xpage=504>

E`qui*pon"der*ate (?) , v. i. [ Equi- + L. ponderare to weigh. See Ponderate .] To be equal in weight; to weigh as much as another thing.

Bp. Wilkins.

Equiponderate <Xpage=504>

E`qui*pon"der*ate , v. t. To make equal in weight; to counterbalance. "More than equiponderated the declension in that direction."

De Quincey.

Equiponderous <Xpage=504>

E`qui*pon"der*ous (?) , a. [ Equi- + L. pondus , ponderis , weight.] Having equal weight.

Bailey.

Equipondious <Xpage=504>

E`qui*pon"di*ous (?) , a. [L. aequipondium an equal weight; aequus equal + pondus weight.] Of equal weight on both sides; balanced. [Obs.]

Glanvill.

Equipotential <Xpage=504>

E`qui*po*ten"tial (?) , a. [ Equi- + potential .] (Mech. & Physics) Having the same potential.

Equipotential surface , a surface for which the potential is for all points of the surface constant. Level surfaces on the earth are equipotential .

Equiradical <Xpage=504>

E`qui*rad"i*cal (?) a. [ Equi- + radical .] Equally radical. [R.]

Coleridge.

Equirotal <Xpage=504>

E`qui*ro"tal (?) , a. [ Equi- + L. rota wheel.] Having wheels of the same size or diameter; having equal rotation. [R.]

Equisetaceous <Xpage=504>

E`qui*se*ta"ceous (?) , a. (Bot.) Belonging to the Equisetace\'91 , or Horsetail family.

Equisetiform <Xpage=504>

E`qui*set"i*form (?) , a. [ Equisetum- + -form .] (Bot.) Having the form of the equisetum.

Equisetum <Xpage=504>

Eq`ui*se"tum (?) , n. ; pl. Equiseta (#) . [L., the horsetail, fr. equus horse + seta a thick,, stiff hair, bristle.] (Bot.) A genus of vascular, cryptogamic, herbaceous plants; -- also called horsetails .

&hand; The Equiseta have hollow jointed stems and no true leaves. The cuticle often contains siliceous granules, so that one species ( E. hyemale ) is used for scouring and polishing, under the name of Dutch rush or scouring rush .

Equisonance <Xpage=504>

E*quis"o*nance (?) , n. [ Equi- + L. sonans , p. pr. of sonare to sound: cf. F. \'82quisonnance. See Sonant .] (Mus.) An equal sounding; the consonance of the unison and its octaves.

Equisonant <Xpage=504>

E*quis"o*nant (?) a. Of the same or like sound.

Equitable <Xpage=504>

Eq"ui*ta*ble (?) , a. [F. \'82quitable , from \'82quit\'82 . See Equity .]

1. Possessing or exhibiting equity; according to natural right or natural justice; marked by a due consideration for what is fair, unbiased, or impartial; just; as an equitable decision; an equitable distribution of an estate; equitable men.

No two . . . had exactly the same notion of what was equitable . Macaulay.

2. (Law) That can be sustained or made available or effective in a court of equity, or upon principles of equity jurisprudence; as, an equitable estate; equitable assets, assignment, mortgage, etc.

Abbott.

Syn. -- Just; fair; reasonable; right; honest; impartial; candid; upright.

Equitableness <Xpage=504>

Eq"ui*ta*ble*ness , n. The quality of being equitable, just, or impartial; as, the equitableness of a judge, a decision, or distribution of property .

Equitably <Xpage=504>

Eq"ui*ta*bly , adv. In an equitable manner; justly; as, the laws should be equitably administered .

Equitancy <Xpage=504>

Eq"ui*tan*cy (?) , n. [Cf. LL. equitantia . See Equitant .] Horsemanship.

Equitant <Xpage=504>

Eq"ui*tant (?) , a. [L. equitans , -antis , p. pr. of equitare to ride, fr. eques horseman, fr. equus horse.]

1. Mounted on, or sitting upon, a horse; riding on horseback.

2. (Bot.) Overlapping each other; -- said of leaves whose bases are folded so as to overlap and bestride the leaves within or above them, as in the iris.

Equitation <Xpage=504>

Eq`ui*ta"tion (?) , n. [L. equitatio , fr. equitare : cf. F. \'82quitation .] A riding, or the act of riding, on horseback; horsemanship.

The pretender to equitation mounted. W. Irving.

Equitemporaneous <Xpage=504>

E`qui*tem`po*ra"ne*ous (?) , a. [L. aequus equal + tempus , temporis , time.] Contemporaneous. [Obs.]

Boyle.

Equites <Xpage=504>

Eq"ui*tes (?) n. pl [L., pl. of eques a horseman.] (Rom. Antiq.) An order of knights holding a middle place between the senate and the commonalty; members of the Roman equestrian order.

Equity <Xpage=504>

Eq"ui*ty (?) , n. ; pl. Equities (#) . [F. \'82quit\'82 , L. aequitas , fr. aequus even, equal. See Equal .]

1. Equality of rights; natural justice or right; the giving, or desiring to give, to each man his due, according to reason, and the law of God to man; fairness in determination of conflicting claims; impartiality.

Christianity secures both the private interests of men and the public peace, enforcing all justice and equity . Tillotson.

2. (Law) An equitable claim; an equity of redemption; as, an equity to a settlement, or wife's equity , etc.

I consider the wife's equity to be too well settled to be shaken. Kent.

3. (Law) A system of jurisprudence, supplemental to law, properly so called, and complemental of it.

Equity had been gradually shaping itself into a refined science which no human faculties could master without long and intense application. Macaulay.

&hand; Equitable jurisprudence in England and in the United States grew up from the inadequacy of common-law forms to secure justice in all cases; and this led to distinct courts by which equity was applied in the way of injunctions, bills of discovery, bills for specified performance, and other processes by which the merits of a case could be reached more summarily or more effectively than by common-law suits. By the recent English Judicature Act (1873), however, the English judges are bound to give effect, in common-law suits, to all equitable rights and remedies; and when the rules of equity and of common law, in any particular case, conflict, the rules of equity are to prevail. In many jurisdictions in the United States, equity and common law are thus blended; in others distinct equity tribunals are still maintained. See Chancery .

Equity of redemption (Law) , the advantage, allowed to a mortgageor, of a certain or reasonable time to redeem lands mortgaged, after they have been forfeited at law by the nonpayment of the sum of money due on the mortgage at the appointed time.

Blackstone.

Syn. -- Right; justice; impartiality; rectitude; fairness; honesty; uprightness. See Justice .

Equivalence <Xpage=504>

E*quiv"a*lence (?) , n. [Cf. F. \'82quivalence , LL. aequivalentia .]

1. The condition of being equivalent or equal; equality of worth, value, signification, or force; as, an equivalence of definitions .

2. Equal power or force; equivalent amount.

3. (Chem.) (a) The quantity of the combining power of an atom, expressed in hydrogen units; the number of hydrogen atoms can combine with, or be exchanged for; valency. See Valence . (b) The degree of combining power as determined by relative weight. See Equivalent , n. , 2. [R.]

Equivalence <Xpage=504>

E*quiv"a*lence , v. t. To be equivalent or equal to; to counterbalance. [R.]

Sir T. Browne.

Equivalency <Xpage=504>

E*quiv"a*len*cy (?) , n. Same as Equivalence .

Equivalent <Xpage=504>

E*quiv"a*lent (?) , a. [L. aequivalens , -entis , p. pr. of aequivalere to have equal power; aequus equal + valere to be strong, be worth: cf. F. \'82quivalent . See Equal , and Valiant .]

1. Equal in wortir or value, force, power, effect, import, and the like; alike in significance and value; of the same import or meaning.

For now to serve and to minister, servile and ministerial, are terms equivalent . South.

2. (Geom.) Equal in measure but not admitting of superposition; -- applied to magnitudes; as, a square may be equivalent to a triangle .

<page="506"> Page 506

3. (Geol.) Contemporaneous in origin; as, the equivalent strata of different countries .

Equivalent <Xpage=506>

E*quiv"a*lent (?) , n.