vacuum

[VacĀ·u*um]

A vacuum is essentially a great lack of something a place where virtually all matter, even air, has been removed. It can describe something that's literally empty or something that just seems that way, like a political vacuum.

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A space entirely devoid of matter (called also, by way of distinction, absolute vacuum); hence, in a more general sense, a space, as the interior of a closed vessel, which has been exhausted to a high or the highest degree by an air pump or other artificial means; as, water boils at a reduced temperature in a vacuum.

Noun
an electrical home appliance that cleans by suction

Noun
a region empty of matter

Noun
an empty area or space; "the huge desert voids"; "the emptiness of outer space"; "without their support he''ll be ruling in a vacuum"

Noun
the absence of matter

Verb
clean with a vacuum cleaner; "vacuum the carpets"

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n.
A space entirely devoid of matter (called also, by way of distinction, absolute vacuum); hence, in a more general sense, a space, as the interior of a closed vessel, which has been exhausted to a high or the highest degree by an air pump or other artificial means; as, water boils at a reduced temperature in a vacuum.

n.
The condition of rarefaction, or reduction of pressure below that of the atmosphere, in a vessel, as the condenser of a steam engine, which is nearly exhausted of air or steam, etc.; as, a vacuum of 26 inches of mercury, or 13 pounds per square inch.


Vacuum

Vac"u*um , n.; pl. E. Vacuums , L. Vacua . [L., fr. vacuus empty. See Vacuous.] 1. (Physics) A space entirely devoid of matter (called also, by way of distinction, absolute vacuum); hence, in a more general sense, a space, as the interior of a closed vessel, which has been exhausted to a high or the highest degree by an air pump or other artificial means; as, water boils at a reduced temperature in a vacuum. 2. The condition of rarefaction, or reduction of pressure below that of the atmosphere, in a vessel, as the condenser of a steam engine, which is nearly exhausted of air or steam, etc.; as, a vacuum of 26 inches of mercury, or 13 pounds per square inch. Vacuum brake, a kind of continuous brake operated by exhausting the air from some appliance under each car, and so causing the pressure of the atmosphere to apply the brakes. -- Vacuum pan (Technol.), a kind of large closed metallic retort used in sugar making for boiling down sirup. It is so connected with an exhausting apparatus that a partial vacuum is formed within. This allows the evaporation and concentration to take place at a lower atmospheric pressure and hence also at a lower temperature, which largely obviates the danger of burning the sugar, and shortens the process. -- Vacuum pump. Same as Pulsometer, 1. -- Vacuum tube (Phys.), a glass tube provided with platinum electrodes and exhausted, for the passage of the electrical discharge; a Geissler tube. -- Vacuum valve, a safety valve opening inward to admit air to a vessel in which the pressure is less than that of the atmosphere, in order to prevent collapse. -- Torricellian vacuum. See under Torricellian.

A space entirely devoid of matter (called also, by way of distinction, absolute vacuum); hence, in a more general sense, a space, as the interior of a closed vessel, which has been exhausted to a high or the highest degree by an air pump or other artificial means; as, water boils at a reduced temperature in a vacuum.

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Usage Examples

All of Koons's best art - the encased vacuum cleaners, the stainless-steel Rabbit (the late-twentieth century's signature work of Simulationist sculpture), the amazing gleaming Balloon Dog, and the cast-iron re-creation of a Civil War mortar exhibited last month at the Armory - has simultaneously flaunted extreme realism, idealism, and fantasy.

It's amazing that something only an atom thick can be an impenetrable barrier. You can have gas on one side and vacuum or liquid on the other, and with a wall only one atom thick, nothing would go through it.

Change means movement. Movement means friction. Only in the frictionless vacuum of a nonexistent abstract world can movement or change occur without that abrasive friction of conflict.

Let's not leave an educational vacuum to be filled by religious extremists who go to families who have no other option and offer meals, housing and some form of education. If we are going to combat extremism then we must educate those very same children.

If it isn't the sheriff, it's the finance company I've got more attachments on me than a vacuum cleaner.

Spaghetti can be eaten most successfully if you inhale it like a vacuum cleaner.

There is a God shaped vacuum in the heart of every man which cannot be filled by any created thing, but only by God, the Creator, made known through Jesus.

Misspelled Form

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Other Usage Examples

There was a time I was very much blaming the way I felt on L.A, that it was a vacuum of creativity, of humor or anything organic, and I was really angry at the place. But then today I feel completely different - I love L.A.!

When I was a kid, my mom used to run the vacuum cleaner, and the noise would bother me so much that I would run into the woods to calm down. I feel like that vacuum cleaner has been on since I moved to New York City.

I am a leader by default, only because nature does not allow a vacuum.

A vacuum is a hell of a lot better than some of the stuff that nature replaces it with.

Nature abhors a vacuum.

Teenagers who are never required to vacuum are living in one.

Until democracy in effective enthusiastic action fills the vacuum created by the power of modern inventions, we may expect the fascists to increase in power after the war both in the United States and in the world.

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