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gas
[ gas ]
noun
- Physics. a substance possessing perfect molecular mobility and the property of indefinite expansion, as opposed to a solid or liquid.
- any such fluid or mixture of fluids.
- any such fluid used as an anesthetic, as nitrous oxide:
Did the dentist give you gas for your extraction?
- any such combustible fluid used as fuel:
Light the gas in the oven.
- Automotive.
- Also called gas pedal. the foot-operated accelerator of an automotive vehicle:
Take your foot off the gas.
- Coal Mining. an explosive mixture of firedamp with air.
- an aeriform fluid or a mistlike assemblage of fine particles suspended in air, used in warfare to asphyxiate, poison, or stupefy an enemy.
- Slang.
- empty talk.
- a person or thing that is very entertaining, pleasing, or successful:
The party was an absolute gas, and we loved it.
- a person or thing that affects one strongly.
verb (used with object)
- to supply with gas.
- to overcome, poison, or asphyxiate with gas or fumes.
- to singe (yarns or fabrics) with a gas flame to remove superfluous fibers.
- to treat or impregnate with gas.
- Slang.
- to talk nonsense or falsehood to.
- to amuse or affect strongly:
Her weird clothes really gas me.
verb (used without object)
- to give off gas, as a storage battery being charged.
- Slang.
- to indulge in idle, empty talk.
- to become drunk (often followed by up ).
verb phrase
- to fill the gasoline tank of an automobile, truck, or other vehicle.
gas
/ ɡæs /
noun
- any substance that is gaseous at room temperature and atmospheric pressure
- any gaseous substance that is above its critical temperature and therefore not liquefiable by pressure alone Compare vapour
- a fossil fuel in the form of a gas, used as a source of domestic and industrial heat See also coal gas natural gas
- ( as modifier )
a gas cooker
gas fire
- a gaseous anaesthetic, such as nitrous oxide
- mining firedamp or the explosive mixture of firedamp and air
- step on the gas informal.
- to increase the speed of a motor vehicle; accelerate
- to hurry
- a toxic or suffocating substance in suspension in air used against an enemy
- informal.idle talk or boasting
- slang.a delightful or successful person or thing
his latest record is a gas
- an informal name for flatus
verb
- tr to provide or fill with gas
- tr to subject to gas fumes, esp so as to asphyxiate or render unconscious
- intr to give off gas, as in the charging of a battery
- tr (in textiles) to singe (fabric) with a flame from a gas burner to remove unwanted fibres
- informal.intrfoll byto to talk in an idle or boastful way (to a person)
- slang.tr to thrill or delight
gas
/ găs /
- 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.
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Derived Forms
- ˈgasless, adjective
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Other Words From
- gas·less adjective
- non·gas noun plural nongases
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Word History and Origins
Origin of gas1
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Word History and Origins
Origin of gas1
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Idioms and Phrases
- step on the gas, Informal. 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.
More idioms and phrases containing gas
In addition to the idiom beginning with gas , also see cook with gas ; run out of steam (gas) .Advertisement
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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