Definitions for: Quantity

[n] how much there is of something that you can measure
[n] an adequate or large amount; "he had a quantity of ammunition"
[n] something that has a magnitude and can be represented in mathematical expressions by a constant or a variable

Webster (1913) Definition: Quan"ti*ty, v. t. [L. quantus now much + -fy.]
To modify or qualify with respect to quantity; to fix or
express the quantity of; to rate.

Quan"ti*ty, n.; pl. Quantities. [F. quantite, L.
quantitas, fr. quantus bow great, how much, akin to quam bow,
E. how, who. See Who.]
1. The attribute of being so much, and not more or less; the
property of being measurable, or capable of increase and
decrease, multiplication and division; greatness; and more
concretely, that which answers the question ``How much?'';
measure in regard to bulk or amount; determinate or
comparative dimensions; measure; amount; bulk; extent;
size. Hence, in specific uses:
(a) (Logic) The extent or extension of a general
conception, that is, the number of species or
individuals to which it may be applied; also, its
content or comprehension, that is, the number of its
constituent qualities, attributes, or relations.
(b) (Gram.) The measure of a syllable; that which
determines the time in which it is pronounced; as, the
long or short quantity of a vowel or syllable.
(c) (Mus.) The relative duration of a tone.

2. That which can be increased, diminished, or measured;
especially (Math.), anything to which mathematical
processes are applicable.

Note: Quantity is discrete when it is applied to separate
objects, as in number; continuous, when the parts are
connected, either in succession, as in time, motion,
etc., or in extension, as by the dimensions of space,
viz., length, breadth, and thickness.

3. A determinate or estimated amount; a sum or bulk; a
certain portion or part; sometimes, a considerable amount;
a large portion, bulk, or sum; as, a medicine taken in
quantities, that is, in large quantities.

The quantity of extensive and curious information
which he had picked up during many months of
desultory, but not unprofitable, study. --Macaulay.

Quantity of estate (Law), its time of continuance, or
degree of interest, as in fee, for life, or for years.
--Wharton (Law Dict. )

Quantity of matter, in a body, its mass, as determined by
its weight, or by its momentum under a given velocity.

Quantity of motion (Mech.), in a body, the relative amount
of its motion, as measured by its momentum, varying as the
product of mass and velocity.

Known quantities (Math.), quantities whose values are

Unknown quantities (Math.), quantities whose values are

Synonyms: amount, measure, quantum

See Also: abstraction, abundance, amount, amount, binomial, chance, concept, conception, constant, constant quantity, construct, copiousness, cordage, definite quantity, economic value, fundamental measure, fundamental quantity, indefinite quantity, interval, linear measure, long measure, magnetisation, magnetization, mathematical product, numerical quantity, octane number, octane rating, operand, parameter, period of play, play, playing period, probability, product, proof, proportional, quantum, relative quantity, sum, system of measurement, teemingness, term, time interval, time unit, total, unit of time, value, variable, variable quantity, volume

Famous Quotes Containing Quantity:

Number is different from quantity.

-- Gregory Bateson (British Scientist)

I have known a vast quantity of nonsense talked about bad men not looking you in the face. Don't trust that conventional idea. Dishonesty will stare honesty out of countenance any day in the week, if there is anything to be got by it.

-- Charles Dickens (English Novelist)

It will be readily admitted, that a degree conferred by an university, ought to be a pledge to the public that he who holds it possesses a certain quantity of knowledge.

-- Charles Babbage (English Mathematician)

If a commodity were in no way useful, - in other words, if it could in no way contribute to our gratification, - it would be destitute of exchangeable value, however scarce it might be, or whatever quantity of labour might be necessary to procure it.

-- David Ricardo (British Economist)

But in truth, should I meet with gold or spices in great quantity, I shall remain till I collect as much as possible, and for this purpose I am proceeding solely in quest of them.

-- Christopher Columbus (Italian Explorer)

Simplicity is the final achievement. After one has played a vast quantity of notes and more notes, it is simplicity that emerges as the crowning reward of art.

-- Frederic Chopin (Polish Composer)

There is a great discovery still to be made in literature, that of paying literary men by the quantity they do not write.

-- Thomas Carlyle (Scottish Philosopher)

It is our best work that God wants, not the dregs of our exhaustion. I think he must prefer quality to quantity.

-- George MacDonald (Scottish Novelist)

Nothing of the kind; they do all these things in their houses and sheds, with common charcoal fires, and a quantity of straw to stop up the crevices in the doors and windows.

-- Robert Fortune (Scottish Scientist)

Knowledge is like money: to be of value it must circulate, and in circulating it can increase in quantity and, hopefully, in value.

-- Louis L'Amour (American Author)

Knowledge comes, but wisdom lingers. It may not be difficult to store up in the mind a vast quantity of face within a comparatively short time, but the ability to form judgments requires the severe discipline of hard work and the tempering heat of experience and maturity.

-- Calvin Coolidge (American President)

It is not of the essence of mathematics to be conversant with the ideas of number and quantity.

-- George Boole (Irish Mathematician)

If the quantity of labour realized in commodities, regulate their exchangeable value, every increase of the quantity of labour must augment the value of that commodity on which it is exercised, as every diminution must lower it.

-- David Ricardo (British Economist)

There's not a good poet I know who has not at the beck and call of his memory a vast quantity of poetry that composes his mental library.

-- Anthony Hecht (American Poet)

An American of the present day reading his Sunday newspaper in a state of lazy collapse is one of the most perfect symbols of the triumph of quantity over quality that the world has yet seen.

-- Irving Babbitt (American Critic)

Corn is the leading food and feed crop of the United States in geographic range of production, acreage, and quantity of product. The vital importance of a large acreage of this crop, properly cared for, therefore, is obvious.

-- David F. Houston (American Politician)

We are rich in the quantity of songs rather than in the quality. The singer has to go through hundreds of compositions before he finds one that really says something.

-- Alma Gluck (American Musician)

Quantity in food is more to be regarded than quality. A full meal is a great enemy both to study and industry.

-- Samuel Richardson (English Novelist)

The first truth for special operations is that quality is more important than quantity.

-- Hugh Shelton (American Soldier)

It is not by the absolute quantity of produce obtained by either class, that we can correctly judge of the rate of profit, rent, and wages, but by the quantity of labour required to obtain that produce.

-- David Ricardo (British Economist)

If one introduces the concept of energy of an earthquake then that is a theoretically derived quantity.

-- Charles Francis Richter (American Scientist)

Because of my age and because there's more work on the small screen. What it's missing in quality it makes up for in quantity. From an actor's selfish point of view.

-- Cesar Romero (American Actor)

The only thing I do worry about is that the more films I do the more visible I am going to become as a personality because of press and because of the sheer quantity of films.

-- Vincent D'Onofrio (American Actor)

We can make a commitment to promote vegetables and fruits and whole grains on every part of every menu. We can make portion sizes smaller and emphasize quality over quantity. And we can help create a culture - imagine this - where our kids ask for healthy options instead of resisting them.

-- Michelle Obama (American First Lady)

It's difficult to get started-when it comes to dealing with an unknown quantity, people are reluctant to trust their own opinion. It helps if two or three people give you a boost.

-- Lyle Lovett (American Musician)

To those who ask what the infinitely small quantity in mathematics is, we answer that it is actually zero. Hence there are not so many mysteries hidden in this concept as they are usually believed to be.

-- Leonhard Euler (Swiss Mathematician)

In the same manner if any nation wasted part of its wealth, or lost part of its trade, it could not retain the same quantity of circulating medium which it before possessed.

-- David Ricardo (British Economist)

The greatest felony in the news business today is to be behind, or to miss a big story. So speed and quantity substitute for thoroughness and quality, for accuracy and context.

-- Carl Bernstein (American Journalist)

The strength and power of a country depends absolutely on the quantity of good men and women in it.

-- John Ruskin (English Writer)

We were totally unprepared for such a large quantity of visitors, and in view of the preservation of the antiquities they being very crowded and in poor preservation, we were obliged to refuse admission until some preparation was made to safeguard the objects.

-- Howard Carter (English Scientist)

Wales was in ancient times divided into three parts nearly equal, consideration having been paid, in this division, more to the value than to the just quantity or proportion of territory.

-- Giraldus Cambrensis (Welsh Clergyman)

That's a problem. I mean, like any sort of growing startup organization, we are sort of overwhelmed by our growth. And that means we're getting enormous quantity of whistleblower disclosures of a very high caliber, but don't have enough people to actually process and vet this information.

-- Julian Assange (Australian Activist)

In bodies moved, the motion is received, increased, diminished, or lost, according to the relations of the quantity of matter and velocity; each diversity is uniformity, each change is constancy.

-- Charles de Secondat (French Philosopher)

Talent is a matter of quantity. Talent does not write on page, it writes three hundred.

-- Jules Renard (French Dramatist)

What makes a specific quality or quantity of innovation retain its intense newness over the years?

-- Brian Ferneyhough (British Composer)

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