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:


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)

Education alone can conduct us to that enjoyment which is, at once, best in quality and infinite in quantity.

-- Horace Mann (American Educator)

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)

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 of the essence of mathematics to be conversant with the ideas of number and quantity.

-- George Boole (Irish Mathematician)

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)

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)

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)

I consider it top priority to improve water quality and increase water quantity in my community.

-- Joe Baca (American Politician)

Badness you can get easily, in quantity; the road is smooth, and it lies close by, But in front of excellence the immortal gods have put sweat, and long and steep is the way to it.

-- Hesiod (Greek Poet)

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

-- John Ruskin (English Writer)

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)

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)

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)

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)

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)

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)

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)

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

-- Charles Francis Richter (American Scientist)

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)

It is quality rather than quantity that matters.

-- Lucius Annaeus Seneca (Roman Statesman)

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

-- William Ellery Channing (American Writer)

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

-- Brian Ferneyhough (British Composer)

It is the quality rather than the quantity that matters.

-- Lucius Annaeus Seneca (Roman Statesman)

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)

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)

There were sometimes from forty to sixty English machines, but unfortunately the Germans were often in the minority. With them quality was more important than quantity.

-- Manfred von Richthofen (German Aviator)

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)

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)

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)

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)

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)

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)

Everyone is looking for the sure thing. They are looking to hedge their bet. They think the way to do that is to go with a proven quantity, a remake of something you have already seen. That is their mindset.

-- Leonard Maltin (American Critic)


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