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fraction    音标拼音: [fr'ækʃən]
n. 碎片,少量,一小部分

碎片,少量,一小部分

fraction
分数

fraction
分数

fraction
n 1: a component of a mixture that has been separated by a
fractional process
2: a small part or item forming a piece of a whole
3: the quotient of two rational numbers
v 1: perform a division; "Can you divide 49 by seven?" [synonym:
{divide}, {fraction}] [ant: {multiply}]

Fraction \Frac"tion\, v. t. (Chem.)
To separate by means of, or to subject to, fractional
distillation or crystallization; to fractionate; --
frequently used with out; as, to fraction out a certain grade
of oil from pretroleum.
[1913 Webster]


Fraction \Frac"tion\, n. [F. fraction, L. fractio a breaking,
fr. frangere, fractum, to break. See {Break}.]
1. The act of breaking, or state of being broken, especially
by violence. [Obs.]
[1913 Webster]

Neither can the natural body of Christ be subject to
any fraction or breaking up. --Foxe.
[1913 Webster]

2. A portion; a fragment.
[1913 Webster]

Some niggard fractions of an hour. --Tennyson.
[1913 Webster]

3. (Arith. or Alg.) One or more aliquot parts of a unit or
whole number; an expression for a definite portion of a
unit or magnitude.
[1913 Webster]

{Common fraction}, or {Vulgar fraction}, a fraction in which
the number of equal parts into which the integer is
supposed to be divided is indicated by figures or letters,
called the denominator, written below a line, over which
is the numerator, indicating the number of these parts
included in the fraction; as 1/2, one half, 2/5, two
fifths.

{Complex fraction}, a fraction having a fraction or mixed
number in the numerator or denominator, or in both.
--Davies & Peck.

{Compound fraction}, a fraction of a fraction; two or more
fractions connected by of.

{Continued fraction}, {Decimal fraction}, {Partial fraction},
etc. See under {Continued}, {Decimal}, {Partial}, etc.

{Improper fraction}, a fraction in which the numerator is
greater than the denominator.

{Proper fraction}, a fraction in which the numerator is less
than the denominator.
[1913 Webster]


Angle \An"gle\ ([a^][ng]"g'l), n. [F. angle, L. angulus angle,
corner; akin to uncus hook, Gr. 'agky`los bent, crooked,
angular, 'a`gkos a bend or hollow, AS. angel hook, fish-hook,
G. angel, and F. anchor.]
1. The inclosed space near the point where two lines meet; a
corner; a nook.
[1913 Webster]

Into the utmost angle of the world. --Spenser.
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To search the tenderest angles of the heart.
--Milton.
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2. (Geom.)
(a) The figure made by. two lines which meet.
(b) The difference of direction of two lines. In the lines
meet, the point of meeting is the vertex of the angle.
[1913 Webster]

3. A projecting or sharp corner; an angular fragment.
[1913 Webster]

Though but an angle reached him of the stone.
--Dryden.
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4. (Astrol.) A name given to four of the twelve astrological
"houses." [Obs.] --Chaucer.
[1913 Webster]

5. [AS. angel.] A fishhook; tackle for catching fish,
consisting of a line, hook, and bait, with or without a
rod.
[1913 Webster]

Give me mine angle: we 'll to the river there.
--Shak.
[1913 Webster]

A fisher next his trembling angle bears. --Pope.
[1913 Webster]

{Acute angle}, one less than a right angle, or less than
90[deg].

{Adjacent} or {Contiguous angles}, such as have one leg
common to both angles.

{Alternate angles}. See {Alternate}.

{Angle bar}.
(a) (Carp.) An upright bar at the angle where two faces of
a polygonal or bay window meet. --Knight.
(b) (Mach.) Same as {Angle iron}.

{Angle bead} (Arch.), a bead worked on or fixed to the angle
of any architectural work, esp. for protecting an angle of
a wall.

{Angle brace}, {Angle tie} (Carp.), a brace across an
interior angle of a wooden frame, forming the hypothenuse
and securing the two side pieces together. --Knight.

{Angle iron} (Mach.), a rolled bar or plate of iron having
one or more angles, used for forming the corners, or
connecting or sustaining the sides of an iron structure to
which it is riveted.

{Angle leaf} (Arch.), a detail in the form of a leaf, more or
less conventionalized, used to decorate and sometimes to
strengthen an angle.

{Angle meter}, an instrument for measuring angles, esp. for
ascertaining the dip of strata.

{Angle shaft} (Arch.), an enriched angle bead, often having a
capital or base, or both.

{Curvilineal angle}, one formed by two curved lines.

{External angles}, angles formed by the sides of any
right-lined figure, when the sides are produced or
lengthened.

{Facial angle}. See under {Facial}.

{Internal angles}, those which are within any right-lined
figure.

{Mixtilineal angle}, one formed by a right line with a curved
line.

{Oblique angle}, one acute or obtuse, in opposition to a
right angle.

{Obtuse angle}, one greater than a right angle, or more than
90[deg].

{Optic angle}. See under {Optic}.

{Rectilineal} or {Right-lined angle}, one formed by two right
lines.

{Right angle}, one formed by a right line falling on another
perpendicularly, or an angle of 90[deg] (measured by a
quarter circle).

{Solid angle}, the figure formed by the meeting of three or
more plane angles at one point.

{Spherical angle}, one made by the meeting of two arcs of
great circles, which mutually cut one another on the
surface of a globe or sphere.

{Visual angle}, the angle formed by two rays of light, or two
straight lines drawn from the extreme points of an object
to the center of the eye.

{For Angles of commutation}, {draught}, {incidence},
{reflection}, {refraction}, {position}, {repose}, {fraction},
see {Commutation}, {Draught}, {Incidence}, {Reflection},
{Refraction}, etc.
[1913 Webster]

71 Moby Thesaurus words for "fraction":
Gaussian integer, adjunct, algebraic number,
arithmetical proportion, cardinal, cardinal number, complex number,
component, contingent, continued fraction, cross section,
defective number, detachment, detail, division, dole, even number,
finite number, geometric ratio, harmonic proportion,
imaginary number, impair, improper fraction, infinity, installment,
integer, irrational, irrational number, item, mixed number,
ordinal, pair, parcel, part, particular, percent, percentage,
polygonal number, portion, prime number, proportion,
pure imaginary, quadrant, quarter, quota, quotum, random sample,
rate, ratio, rational, rational number, real, real number,
rectangular number, remainder, round number, rule of three, sample,
sampling, section, sector, segment, serial number, share,
subdivision, subgroup, subspecies, surd, transcendental number,
transfinite number, whole number

FRACTION. A part of any thing broken. A combination of numbers, in
arithmetic and algebra, representing one or more parts of a unit or integer.
Thus, four-fifths is a fraction, formed by dividing a unit into-five equal
parts, and taking one part four times. In law, the term fraction is usually
applied to the division of a day.
2. In general, there are no fractions in days. Co. Litt. 225 2 Salk.
625; 2 P. A. Browne, 18; II Mass. 204. But in some cases a fraction will be
taken into the account, in order to secure a party his rights; 3 Chit. Pr.
111; 8 Ves. 80 4 Campb. R. 197; 2 B. & Ald. 586; Savig. Dr. Rom. Sec. 182;
Rob. Dig. of Engl. Statutes in force in Pennsylvania, 431-2 and when it is
required by a special law. Vide article Date.



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