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
given.

Unknown quantities (Math.), quantities whose values are
sought.

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:


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)

It is not the quantity but the quality of knowledge which determines the mind's dignity.

-- William Ellery Channing (American Writer)

I am not one of the great composers. All the great have produced enormously. There is everything in their work - the best and the worst, but there is always quantity. But I have written relatively little.

-- Maurice Ravel (French Composer)

Value denotes a relation reciprocally existing between two objects, and the precise relation which it denotes is the quantity of the one which can be obtained in exchange for a given quantity of the other.

-- Nassau William Senior (English Economist)

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)

Greatness, generally speaking, is an unusual quantity of a usual quality grafted upon a common man.

-- William Allen White (American Editor)

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)

The first requisite of a sound monetary system is that it put the least possible power over the quantity or quality of money in the hands of the politicians.

-- Henry Hazlitt (American Philosopher)

Gold and silver, like other commodities, have an intrinsic value, which is not arbitrary, but is dependent on their scarcity, the quantity of labour bestowed in procuring them, and the value of the capital employed in the mines which produce them.

-- David Ricardo (British Economist)

It is the quality of lending over the quantity of lending.

-- Lewis Thompson Preston (American Businessman)

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)

If I cannot overwhelm with my quality, I will overwhelm with my quantity.

-- Emile Zola (French Novelist)

As the revenue of the farmer is realized in raw produce, or in the value of raw produce, he is interested, as well as the landlord, in its high exchangeable value, but a low price of produce may be compensated to him by a great additional quantity.

-- David Ricardo (British Economist)

To say that most of us today are purely expansive is only another way of saying that most of us continue to be more concerned with the quantity than with the quality of our democracy.

-- Irving Babbitt (American Critic)

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)

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)

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

-- Charles Francis Richter (American Scientist)

Gold, on the contrary, though of little use compared with air or water, will exchange for a great quantity of other goods.

-- David Ricardo (British Economist)

Number is different from quantity.

-- Gregory Bateson (British Scientist)

It is impossible, in principle, to explain any pattern by invoking a single quantity.

-- Gregory Bateson (British Scientist)

The numbers may be said to rule the whole world of quantity, and the four rules of arithmetic may be regarded as the complete equipment of the mathematician.

-- James C. Maxwell (Scottish Mathematician)

All things will be produced in superior quantity and quality, and with greater ease, when each man works at a single occupation, in accordance with his natural gifts, and at the right moment, without meddling with anything else.

-- Plato (Greek Philosopher)

It is quality rather than quantity that matters.

-- Lucius Annaeus Seneca (Roman Statesman)

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

-- George Boole (Irish Mathematician)

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

-- Hugh Shelton (American Soldier)

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)

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)

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)

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)

In this case, the particle formed has correspondingly less energy, whereas the product nucleus passes into the ground state with emission of the quantity of energy saved as gamma radiation.

-- Walther Bothe (German Physicist)

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)

Beauty is composed of an eternal, invariable element whose quantity is extremely difficult to determine, and a relative element which might be, either by turns or all at once, period, fashion, moral, passion.

-- Jean-Luc Godard (French Director)

It is the quality rather than the quantity that matters.

-- Lucius Annaeus Seneca (Roman Statesman)

The trouble with the public is that there is too much of it; what we need in public is less quantity and more quality.

-- Don Marquis (American Poet)

Rather, for all objects and experiences, there is a quantity that has optimum value. Above that quantity, the variable becomes toxic. To fall below that value is to be deprived.

-- Gregory Bateson (British Scientist)


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