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.
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.
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.
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.
to talk nonsense or falsehood to.
to amuse or affect strongly: Her weird clothes really gas me.
to give off gas, as a storage battery being charged.
to indulge in idle, empty talk.
to become drunk (often followed by up).
gas up, to fill the gasoline tank of an automobile, truck, or other vehicle.
Idioms about gas
- gasless, adjective
- non·gas, noun, plural non·gas·es.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use gas in a sentence
That means they are composed of compressed gasses, with no solid surface.
The Syrian military has also been known to mix more and less-lethal gasses in order to mask the use of chemical weapons.Obama Administration Stiffs Chemical Survivors on New Claim | Josh Rogin, Noah Shachtman | February 20, 2014 | THE DAILY BEAST
Try convincing the tea-bag crowd that the U.S. should cut its greenhouse gasses more than China does.
Aft of Stores, I heard the whistle of escaping air and high pressure gasses from ruptured lines.Greylorn | John Keith Laumer
Under the warm beams, the frozen gasses evaporated, and in a few moments he had cleared the area around the ship.Islands of Space | John W Campbell
Some eruption, perhaps, this we have seen—an ignition of gasses in the upper air—who knows?
A series of new flashes broke out, lifting and spreading the incandescent radioactive gasses, and then a great gush of flame rose.Uller Uprising | Henry Beam Piper, John D. Clark and John F. Carr
Twelve or more evacuations may take place during a day; as a rule they are much increased by gasses and are of bad odor.Prof. Koch's Method to Cure Tuberculosis Popularly Treated | Max Birnbaum
British Dictionary definitions for gas
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 (def. 2)
(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
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
US an informal name for flatus
(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
(intr foll by to) informal to talk in an idle or boastful way (to a person)
(tr) slang, mainly US and Canadian to thrill or delight
- gasless, adjective
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
Scientific definitions for gas
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.
- gaseous adjective (găs′ē-əs, găsh′əs)
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Cultural definitions for gas
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Other Idioms and Phrases with gas
In addition to the idiom beginning with gas
- gas up
- cook with gas
- run out of steam (gas)
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.