GAS Definition & Meaning | Dictionary.com

View synonyms for

gas

[ gas ]

Phonetic (Standard)IPA

noun

plural gases or gasses.

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.
1. gasoline.
2. Also called gas pedal. the foot-operated accelerator of an automotive vehicle:
  Take your foot off the gas.
flatus.
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.
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.

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.
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.

to give off gas, as a storage battery being charged.
Slang.
1. to indulge in idle, empty talk.
2. to become drunk (often followed by up ).

verb phrase

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

gas

/ ɡæ�� /

noun

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
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
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
a gaseous anaesthetic, such as nitrous oxide
mining firedamp or the explosive mixture of firedamp and air
the usual US, Canadian, and New Zealand word for petrol See also gasoline
step on the gas informal.
1. to increase the speed of a motor vehicle; accelerate
2. 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

/ ��ă�� /

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

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.

Discover More

Derived Forms

ˈ��, adjective

Discover More

Other 51�Թ� Forms

��·�� adjective
�Դǲ�·�� noun plural nongases

Discover More

51�Թ� History and Origins

Origin of gas¹

First recorded in 1650–60; coined by J. B. van Helmont (1577–1644), Flemish chemist; suggested by Greek ��á�ǲ� “a�ٳ��ǲ��”

Discover More

51�Թ� History and Origins

Origin of gas¹

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

Discover More

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) .

Discover More

Example Sentences

Examples have not been reviewed.

And at the petrol station near the Ohio Turnpike, the pumps bear relics of the last administration, with slogans slamming Trump's predecessor: "Whoever voted for Biden owes me gas money!"

From

Because the kitchen is unusable, Blanca has to wash her dishes in the bathtub, and she has improvised a cooking area with a gas camping stove in a corner of her living room.

From

"In my work, at the protests, I have seen a lot of violence, and tear gas, but having the police in my home, I felt more afraid."

From

They've drawn up a bill that would impose 500% secondary tariffs on countries that purchase Russian oil, gas and other resources.

From

And despite the laudable role satellites play in monitoring greenhouse gas emissions, they contribute to them too.

From

Related 51�Թ�s

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

Browse