51Թ

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gas

[gas]

noun

plural

gases, gasses 
  1. Physics.a substance possessing perfect molecular mobility and the property of indefinite expansion, as opposed to a solid or liquid.

  2. any such fluid or mixture of fluids.

  3. any such fluid used as an anesthetic, as nitrous oxide.

    Did the dentist give you gas for your extraction?

  4. any such combustible fluid used as fuel.

    Light the gas in the oven.

  5. Automotive.

    1. gasoline.

    2. Also called gas pedal.the foot-operated accelerator of an automotive vehicle.

      Take your foot off the gas.

  6. flatus.

  7. Coal Mining.an explosive mixture of firedamp with air.

  8. an aeriform fluid or a mistlike assemblage of fine particles suspended in air, used in warfare to asphyxiate, poison, or stupefy an enemy.

  9. Slang.

    1. empty talk.

    2. a person or thing that is very entertaining, pleasing, or successful.

      The party was an absolute gas, and we loved it.

    3. a person or thing that affects one strongly.



verb (used with object)

gassed, gassing 
  1. to supply with gas.

  2. to overcome, poison, or asphyxiate with gas or fumes.

  3. to singe (yarns or fabrics) with a gas flame to remove superfluous fibers.

  4. to treat or impregnate with gas.

  5. Slang.

    1. to talk nonsense or falsehood to.

    2. to amuse or affect strongly.

      Her weird clothes really gas me.

verb (used without object)

gassed, gassing 
  1. to give off gas, as a storage battery being charged.

  2. Slang.

    1. to indulge in idle, empty talk.

    2. to become drunk (often followed byup ).

verb phrase

  1. to fill the gasoline tank of an automobile, truck, or other vehicle.

gas

/ ɡæ /

noun

  1. a substance in a physical state in which it does not resist change of shape and will expand indefinitely to fill any container. If very high pressure is applied a gas may become liquid or solid, otherwise its density tends towards that of the condensed phase Compare liquid solid

  2. any substance that is gaseous at room temperature and atmospheric pressure

  3. any gaseous substance that is above its critical temperature and therefore not liquefiable by pressure alone Compare vapour

    1. a fossil fuel in the form of a gas, used as a source of domestic and industrial heat See also coal gas natural gas

    2. ( as modifier )

      a gas cooker

      gas fire

  4. a gaseous anaesthetic, such as nitrous oxide

  5. mining firedamp or the explosive mixture of firedamp and air

  6. the usual US, Canadian, and New Zealand word for petrol See also gasoline

  7. informal

    1. to increase the speed of a motor vehicle; accelerate

    2. to hurry

  8. a toxic or suffocating substance in suspension in air used against an enemy

  9. informalidle talk or boasting

  10. slanga delightful or successful person or thing

    his latest record is a gas

  11. an informal name for flatus

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

verb

  1. (tr) to provide or fill with gas

  2. (tr) to subject to gas fumes, esp so as to asphyxiate or render unconscious

  3. (intr) to give off gas, as in the charging of a battery

  4. (tr) (in textiles) to singe (fabric) with a flame from a gas burner to remove unwanted fibres

  5. informalto talk in an idle or boastful way (to a person)

  6. slang(tr) to thrill or delight

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

gas

  1. One of four main states of matter, composed of molecules in constant random motion. Unlike a solid, a gas has no fixed shape and will take on the shape of the space available. Unlike a liquid, the intermolecular forces are very small; it has no fixed volume and will expand to fill the space available.

gas

  1. In physics, one of the phases of matter. The atoms or molecules in gases are more widely spaced than in solids or liquids and suffer only occasional collisions with one another.

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Other 51Թ Forms

  • gasless adjective
  • nongas noun
  • ˈ adjective
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51Թ History and Origins

Origin of gas1

First recorded in 1650–60; coined by J. B. van Helmont (1577–1644), Flemish chemist; suggested by Greek áDz “aٳDz”
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51Թ History and Origins

Origin of gas1

C17 (coined by J. B. van Helmont (1577–1644), Flemish chemist): modification of Greek khaos atmosphere
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Idioms and Phrases

Idioms
  1. step on the gas, to increase the speed of one's movement or activity; hurry.

    We'd better step on the gas or we'll be late for the concert.

In addition to the idiom beginning with gas, also see cook with gas; run out of steam (gas).
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Example Sentences

Examples have not been reviewed.

Transportation causes around 30% of the greenhouse gas pollution in the United States, and it’s one of the sectors where we have many known technologies to replace our polluting ways.

From

“Fire does the same thing, but it’s a gas, so it goes the opposite direction,” Nielson said.

From

Such biodegradable waste breaks down to produce methane, a greenhouse gas that is around 28 times more potent than carbon dioxide.

From

The attacks hit the Shahran gas depot, a major hub in Tehran, and the South Pars field, according to the Iranian Oil Ministry.

From

Shanks also said current North Sea oil and gas projects would be allowed to run to completion but reiterated that no further licenses for drilling would be granted.

From

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.

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