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weight
(mass) | weight
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Weight
(gcide) | Weight \Weight\, v. t. [imp. & p. p. Weighted; p. pr. & vb. n.
Weighting.]
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1. To load with a weight or weights; to load down; to make
heavy; to attach weights to; as, to weight a horse or a
jockey at a race; to weight a whip handle.
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The arrows of satire, . . . weighted with sense.
--Coleridge.
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2. (Astron. & Physics) To assign a weight to; to express by a
number the probable accuracy of, as an observation. See
Weight of observations, under Weight.
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3. (Dyeing) To load (fabrics) as with barite, to increase the
weight, etc.
[Webster 1913 Suppl.]
4. (Math.) to assign a numerical value expressing relative
importance to (a measurement), to be multiplied by the
value of the measurement in determining averages or other
aggregate quantities; as, they weighted part one of the
test twice as heavily as part 2.
[PJC]
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Weight
(gcide) | Weight \Weight\, n. [OE. weght, wight, AS. gewiht; akin to D.
gewigt, G. gewicht, Icel. v[ae]tt, Sw. vigt, Dan. v[ae]gt.
See Weigh, v. t.]
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1. The quality of being heavy; that property of bodies by
which they tend toward the center of the earth; the effect
of gravitative force, especially when expressed in certain
units or standards, as pounds, grams, etc.
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Note: Weight differs from gravity in being the effect of
gravity, or the downward pressure of a body under the
influence of gravity; hence, it constitutes a measure
of the force of gravity, and being the resultant of all
the forces exerted by gravity upon the different
particles of the body, it is proportional to the
quantity of matter in the body.
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2. The quantity of heaviness; comparative tendency to the
center of the earth; the quantity of matter as estimated
by the balance, or expressed numerically with reference to
some standard unit; as, a mass of stone having the weight
of five hundred pounds.
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For sorrow, like a heavy-hanging bell,
Once set on ringing, with his own weight goes.
--Shak.
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3. Hence, pressure; burden; as, the weight of care or
business. "The weight of this said time." --Shak.
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For the public all this weight he bears. --Milton.
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[He] who singly bore the world's sad weight.
--Keble.
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4. Importance; power; influence; efficacy; consequence;
moment; impressiveness; as, a consideration of vast
weight.
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In such a point of weight, so near mine honor.
--Shak.
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5. A scale, or graduated standard, of heaviness; a mode of
estimating weight; as, avoirdupois weight; troy weight;
apothecaries' weight.
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6. A ponderous mass; something heavy; as, a clock weight; a
paper weight.
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A man leapeth better with weights in his hands.
--Bacon.
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7. A definite mass of iron, lead, brass, or other metal, to
be used for ascertaining the weight of other bodies; as,
an ounce weight.
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8. (Mech.) The resistance against which a machine acts, as
opposed to the power which moves it. [Obs.]
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Atomic weight. (Chem.) See under Atomic, and cf.
Element.
Dead weight, Feather weight, Heavy weight, {Light
weight}, etc. See under Dead, Feather, etc.
Weight of observation (Astron. & Physics), a number
expressing the most probable relative value of each
observation in determining the result of a series of
observations of the same kind.
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Syn: Ponderousness; gravity; heaviness; pressure; burden;
load; importance; power; influence; efficacy;
consequence; moment; impressiveness.
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WEIGHT
(bouvier) | WEIGHT. A quality in natural bodies, by which they tend towards the centre
of the earth.
2. Under the article Measure, (q.v.) it is said that by the
constitution congress possesses the power "to fix the standard of weights
and measures," and that this power has not been exercised.
3. The weights now generally used in the United States, are the same as
those of England; they are of two kinds:
1. AVOIRDUPOIS WEIGHT.
1st. Used in almost all commercial transactions, and in the common
dealings of life.
27 1/3 1/2 grains = 1 dram
16 drams = 1 ounce
16 ounces = 1 pound, (lb.)
28 pounds = 1 quarter, (qr.)
4 quarters = 1 hundred weight, (cwt.)
20 hundred weight = 1 ton.
2d. Used for meat and fish.
8 pounds = 1 stone
3d. Used in the wool trade.
Cwt. qr. lb.
7 pounds = 1 clove 14 pounds = 1 stone = 0
0 14
2 stones = 1 tod = 0 1 0
6 1/2 tods = 1 wey = 1 2 14
2 weys = 1 sack = 3 1 0 12 sacks = 1
last = 39 0 0
4th. Used for butter and cheese.
8 pounds = 1 clove
56 pounds = 1 firkin.
2. TROY WEIGHT.
24 grams = 1 pennyweight
20 pennyweights = 1 ounce
12 ounces = 1 pound.
4. These are the denominations of troy weight, when used for weighing
gold, silver and precious stones, except diamonds. Troy weight is also used
by apothecaries in compounding medicines; and by them the ounce is divided
into eight drams, and the drain into three scruples, so that the latter is
equal to twenty grains. For scientific purposes, the grain only is used, and
sets of weights are constructed in decimal progression, from 10,000 grains
downward to one-hundredth of a grain. The caret, used for weighing diamonds,
is three and one-sixth grains.
5. A short account of the French weights and measures is given under
the article Measure.
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