Webster's Dictionary, 1913

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Epulosity noun A feasting to excess. [ Obsolete]

Epulotic adjective [ Greek ..., from ... to scar over or heal; 'epi` upon, over + ... whole.] Promoting the skinning over or healing of sores; as, an epulotic ointment. -- noun An epulotic agent.

Epuration noun [ Latin e out, quite + purare to purify, purus pure.] Purification.

Épure noun [ French] (Fine Arts) A draught or model from which to build; especially, one of the full size of the work to be done; a detailed drawing.

Epworth League A religious organization of Methodist young people, founded in 1889 at Cleveland, Ohio, and taking its name from John Wesley's birthplace, Epworth, Lincolnshire, England.

Equability noun [ Latin aequabilitas , from aequabilis . See Equable .] The quality or condition of being equable; evenness or uniformity; as, equability of temperature; the equability of the mind.

For the celestial bodies, the equability and constancy of their motions argue them ordained by wisdom.
Ray.

Equable adjective [ Latin aequabilis , from aequare to make level or equal, from aequus even, equal. See Equal .]
1. Equal and uniform; continuing the same at different times; -- said of motion, and the like; uniform in surface; smooth; as, an equable plain or globe.

2. Uniform in action or intensity; not variable or changing; -- said of the feelings or temper.

Equableness noun Quality or state of being equable.

Equably adverb In an equable manner.

Equal adjective [ Latin aequalis , from aequus even, equal; akin to Sanskrit ...ka , and perhaps to Latin unus for older oinos one, English one .]
1. Agreeing in quantity, size, quality, degree, value, etc.; having the same magnitude, the same value, the same degree, etc.; -- applied to number, degree, quantity, and intensity, and to any subject which admits of them; neither inferior nor superior, greater nor less, better nor worse; corresponding; alike; as, equal quantities of land, water, etc. ; houses of equal size; persons of equal stature or talents; commodities of equal value.

2. Bearing a suitable relation; of just proportion; having competent power, abilities, or means; adequate; as, he is not equal to the task.

The Scots trusted not their own numbers as equal to fight with the English.
Clarendon.

It is not permitted to me to make my commendations equal to your merit.
Dryden.

Whose voice an equal messenger
Conveyed thy meaning mild.
Emerson.

3. Not variable; equable; uniform; even; as, an equal movement. "An equal temper." Dryden.

4. Evenly balanced; not unduly inclining to either side; characterized by fairness; unbiased; impartial; equitable; just.

Are not my ways equal ?
Ezek. xviii. 29.

Thee, O Jove, no equal judge I deem.
Spenser.

Nor think it equal to answer deliberate reason with sudden heat and noise.
Milton.

5. Of the same interest or concern; indifferent.

They who are not disposed to receive them may let them alone or reject them; it is equal to me.
Cheyne.

6. (Mus.) Intended for voices of one kind only, either all male or all female; -- opposed to mixed . [ R.]

7. (Math.) Exactly agreeing with respect to quantity.

Equal temperament . (Mus.) See Temperament .

Syn. -- Even; equable; uniform; adequate; proportionate; commensurate; fair; just; equitable.

Equal noun
1. One not inferior or superior to another; one having the same or a similar age, rank, station, office, talents, strength, or other quality or condition; an equal quantity or number; as, "If equals be taken from equals the remainders are equal."

Those who were once his equals envy and defame him.
Addison.

2. State of being equal; equality. [ Obsolete] Spenser.

Equal transitive verb [ imperfect & past participle Equaled or Equalled ; present participle & verbal noun Equaling or Equalling .]
1. To be or become equal to; to have the same quantity, the same value, the same degree or rank, or the like, with; to be commen...urate with.

On me whose all not equals Edward's moiety.
Shak.

2. To make equal return to; to recompense fully.

Who answered all her cares, and equaled all her love.
Dryden.

3. To make equal or equal to; to equalize; hence, to compare or regard as equals; to put on equality.

He would not equal the mind that he found in himself to the infinite and incomprehensible.
Berkeley.

Equalitarian noun One who believes in equalizing the condition of men; a leveler.

Equality noun ; plural Equalities . [ Latin aequalitas , from aequalis equal. See Equal .]
1. The condition or quality of being equal; agreement in quantity or degree as compared; likeness in bulk, value, rank, properties, etc.; as, the equality of two bodies in length or thickness; an equality of rights.

A footing of equality with nobles.
Macaulay.

2. Sameness in state or continued course; evenness; uniformity; as, an equality of temper or constitution.

3. Evenness; uniformity; as, an equality of surface.

4. (Math.) Exact agreement between two expressions or magnitudes with respect to quantity; -- denoted by the symbol =; thus, a = x signifies that a contains the same number and kind of units of measure that x does.

Confessional equality . See under Confessional .

Equalization noun The act of equalizing, or state of being equalized.

Their equalization with the rest of their fellow subjects.
Burke.

Equalize transitive verb [ imperfect & past participle Equalized ; present participle & verbal noun Equalizing .] [ Confer French égaliser .]
1. To make equal; to cause to correspond, or be like, in amount or degree as compared; as, to equalize accounts, burdens, or taxes.

One poor moment can suffice
To equalize the lofty and the low.
Wordsworth.

No system of instruction will completely equalize natural powers.
Whately.

2. To pronounce equal; to compare as equal.

Which we equalize , and perhaps would willingly prefer to the Iliad.
Orrery.

3. To be equal to; equal; to match. [ Obsolete]

It could not equalize the hundredth part
Of what her eyes have kindled in my heart.
Waller.

Equalizing bar (Railroad Mach.) , a lever connecting two axle boxes, or two springs in a car truck or locomotive, to equalize the pressure on the axles.

Equalizer noun One who, or that which, equalizes anything.

Equalizer noun
1. = Equalizing bar .

2. A device, as a bar, for operating two brakes, esp. a pair of hub brakes for an automobile, with equal force.

3. (Electricity) Any device for equalizing the pull of electromagnets; also, a conductor of low resistance joining the armature ends of the series field coils of dynamos connected in parallel.

4. (Aëronautics) A sliding panel to preserve the lateral stability of an aëroplane.

Equally adverb In an equal manner or degree in equal shares or proportion; with equal and impartial justice; without difference; alike; evenly; justly; as, equally taxed, furnished, etc.

Equalness noun Equality; evenness. Shak.

Equangular adjective [ See Equiangular .] Having equal angles; equiangular. [ R.] Johnson.

Equanimity noun [ Latin aequanimitas , from aequanimus : confer French équanimité . See Equanimous .] Evenness of mind; that calm temper or firmness of mind which is not easily elated or depressed; patience; calmness; composure; as, to bear misfortunes with equanimity .

Equanimous adjective [ Latin aequanimus , from aequus equal + animus mind.] Of an even, composed frame of mind; of a steady temper; not easily elated or depressed. Bp. Gauden.

Equant noun [ Latin aequans , -antis , present participle of aequare : confer French équant . See Equate .] (Ptolemaic Astron.) A circle around whose circumference a planet or the center of ann epicycle was conceived to move uniformly; -- called also eccentric equator .

Equate transitive verb [ imperfect & past participle Equated ; present participle & verbal noun Equating .] [ Latin aequatus , past participle of aequare to make level or equal, from aequus level, equal. See Equal .] To make equal; to reduce to an average; to make such an allowance or correction in as will reduce to a common standard of comparison; to reduce to mean time or motion; as, to equate payments; to equate lines of railroad for grades or curves; equated distances.

Palgrave gives both scrolle and scrowe and equates both to F[ rench] rolle.
Skeat (Etymol. Dict. ).

Equating for grades (Railroad Engin.) , adding to the measured distance one mile for each twenty feet of ascent. -- Equating for curves , adding half a mile for each 360 degrees of curvature.

Equation noun [ Latin aequatio an equalizing: confer French équation equation. See Equate .]
1. A making equal; equal division; equality; equilibrium.

Again the golden day resumed its right,
And ruled in just equation with the night.
Rowe.

2. (Math.) An expression of the condition of equality between two algebraic quantities or sets of quantities, the sign = being placed between them; as, a binomial equation ; a quadratic equation ; an algebraic equation ; a transcendental equation ; an exponential equation ; a logarithmic equation ; a differential equation , etc.

3. (Astron.) A quantity to be applied in computing the mean place or other element of a celestial body; that is, any one of the several quantities to be added to, or taken from, its position as calculated on the hypothesis of a mean uniform motion, in order to find its true position as resulting from its actual and unequal motion.

Absolute equation . See under Absolute . -- Equation box , or Equational box , a system of differential gearing used in spinning machines for regulating the twist of the yarn. It resembles gearing used in equation clocks for showing apparent time. -- Equation of the center (Astron.) , the difference between the place of a planet as supposed to move uniformly in a circle, and its place as moving in an ellipse. -- Equations of condition (Math.) , equations formed for deducing the true values of certain quantities from others on which they depend, when different sets of the latter, as given by observation, would yield different values of the quantities sought, and the number of equations that may be found is greater than the number of unknown quantities. -- Equation of a curve (Math.) , an equation which expresses the relation between the coördinates of every point in the curve. -- Equation of equinoxes (Astron.) , the difference between the mean and apparent places of the equinox. -- Equation of payments (Arith.) , the process of finding the mean time of payment of several sums due at different times. -- Equation of time (Astron.) , the difference between mean and apparent time, or between the time of day indicated by the sun, and that by a perfect clock going uniformly all the year round. -- Equation clock or watch , a timepiece made to exhibit the differences between mean solar and apparent solar time. Knight. -- Normal equation . See under Normal . -- Personal equation (Astron.) , the difference between an observed result and the true qualities or peculiarities in the observer; particularly the difference, in an average of a large number of observation, between the instant when an observer notes a phenomenon, as the transit of a star, and the assumed instant of its actual occurrence; or, relatively, the difference between these instants as noted by two observers. It is usually only a fraction of a second; -- sometimes applied loosely to differences of judgment or method occasioned by temperamental qualities of individuals. -- Theory of equations (Math.) , the branch of algebra that treats of the properties of a single algebraic equation of any degree containing one unknown quantity.

Equator noun [ Latin aequator one who equalizes: confer French équateur equator. See Equate .]
1. (Geology) The imaginary great circle on the earth's surface, everywhere equally distant from the two poles, and dividing the earth's surface into two hemispheres.

2. (Astron.) The great circle of the celestial sphere, coincident with the plane of the earth's equator; - - so called because when the sun is in it, the days and nights are of equal length; hence called also the equinoctial , and on maps, globes, etc., the equinoctial line .

Equator of the sun or of a planet (Astron.) , the great circle whose plane passes through through the center of the body, and is perpendicular to its axis of revolution. -- Magnetic equator . See Aclinic .

Equatorial adjective [ Confer French équatorial .] Of or pertaining to the equator; as, equatorial climates; also, pertaining to an equatorial instrument.

Equatorial noun (Astron.) An instrument consisting of a telescope so mounted as to have two axes of motion at right angles to each other, one of them parallel to the axis of the earth, and each carrying a graduated circle, the one for measuring declination, and the other right ascension, or the hour angle, so that the telescope may be directed, even in the daytime, to any star or other object whose right ascension and declination are known. The motion in right ascension is sometimes communicated by clockwork, so as to keep the object constantly in the field of the telescope. Called also an equatorial telescope .

» The term equatorial , or equatorial instrument , is sometimes applied to any astronomical instrument which has its principal axis of rotation parallel to the axis of the earth.

Equatorially adverb So as to have motion or direction parallel to the equator.

Equerry noun ; plural Equerries . [ French écurie stable, for older escurie , escuirie (confused somewhat with French écuyer , Old French escuyer , squire), Late Latin scuria , Old High German skiura , sc...ra , barn, shed, German scheuer , from a root meaning to cover , protect , and akin to Latin scutum shield. See Esquire , and confer Ecurie , Querry .]
1. A large stable or lodge for horses. Johnson.

2. An officer of princes or nobles, charged with the care of their horses.

» In England equerries are officers of the royal household in the department of the Master of the Horse.

Equery noun Same as Equerry .

Equestrian adjective [ Latin equester , from eques horseman, from equus horse: confer French équestre . See Equine .]
1. Of or pertaining to horses or horsemen, or to horsemanship; as, equestrian feats, or games.

2. Being or riding on horseback; mounted; as, an equestrian statue.

An equestrian lady appeared upon the plains.
Spectator.

3. Belonging to, or composed of, the ancient Roman equities or knights; as, the equestrian order. Burke.

Equestrian noun One who rides on horseback; a horseman; a rider.

Equestrianism noun The art of riding on horseback; performance on horseback; horsemanship; as, feats equestrianism .

Equestrienne noun [ Formed after analogy of the French language.] A woman skilled in equestrianism; a horsewoman.

Equi- [ Latin aequus equal. See Equal .] A prefix, meaning equally ; as, equi distant; equi angular.

Equiangled adjective [ Equi- + angle .] Equiangular. [ Obsolete] Boyle.

Equiangular adjective [ Equi- + angular . Confer Equangular .] Having equal angles; as, an equiangular figure; a square is equiangular .

Equiangular spiral . (Math.) See under Spiral , noun -- Mutually equiangular , applied to two figures, when every angle of the one has its equal among the angles of the other.

Equibalance noun [ Equi- + balance .] Equal weight; equiponderance.

Equibalance transitive verb [ imperfect & past participle Equibalanced ; present participle & verbal noun Equibalancing .] To make of equal weight; to balance equally; to counterbalance; to equiponderate.

Equicrescent adjective [ Equi- + crescent .] (Math.) Increasing by equal increments; as, an equicrescent variable.

Equicrural adjective [ Latin aequicrurius ; aequus equal + crus , cruris , leg.] Having equal legs or sides; isosceles. [ R.] " Equicrural triangles." Sir T. Browne.

Equicrure adjective Equicrural. [ Obsolete]

Equidifferent adjective [ Equi- + different : confer French équidifférent .] Having equal differences; as, the terms of arithmetical progression are equidifferent .

Equidistance noun Equal distance.

Equidistant adjective [ Latin aequidistans , -antis ; aequus equal + distans distant: confer French équidistant .] Being at an equal distance from the same point or thing. -- E`qui*dis"tant*ly , adverb Sir T. Browne.

Equidiurnal adjective [ Equi- + diurnal .] Pertaining to the time of equal day and night; -- applied to the equinoctial line. Whewell.

Equiform adjective [ Latin aequiformis ; aequus equal + forma form.] Having the same form; uniform. -- E`qui*for"mi*ty noun Sir T. Browne.