First Known Use: 1779
Dictionary
1gas
noun \ˈgas\
: a substance (such as oxygen or hydrogen) that is like air and has no fixed shape
: a gas or mixture of gases that is burned as a fuel
: gas in your stomach and intestines that causes pain or discomfort
plural gas·es also gas·ses
Full Definition of GAS
1
: a fluid (as air) that has neither independent shape nor volume but tends to expand indefinitely
2
a : a combustible gas or gaseous mixture for fuel or lighting; especially : natural gas b : a gaseous product of digestion; also : discomfort from this c : a gas or gaseous mixture used to produce anesthesia d : a substance that can be used to produce a poisonous, asphyxiating, or irritant atmosphere
3
: empty talk : bombast
4
: gasoline; also : the accelerator pedal of an automotive vehicle
5
: driving force : energy <I was young, and full of gas — H. L. Mencken> <ran out of gas in the seventh inning>
6
slang : something that gives pleasure : delight <the party was a gas>
See gas defined for English-language learners
See gas defined for kids
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Origin of GAS
New Latin, alteration of Latin chaos space, chaos
Related to GAS
- Synonyms
- bluster, brag, braggadocio, bull [slang], cockalorum, fanfaronade, bombast, gasconade, grandiloquence, hot air, magniloquence, rant, rodomontade (also rhodomontade)
- Antonyms
- lethargy, listlessness, sluggishness, torpidity
Other Chemical Engineering Terms
2gas
verb
: to poison or kill (someone) with gas
: to put gasoline in (a car, truck, etc.)
gassedgas·sing
Full Definition of GAS
intransitive verb
1
: to talk idly or garrulously
2
: to give off gas
3
: to fill the tank (as of an automobile) with gasoline —usually used with up
transitive verb
1
: to supply with gas or especially gasoline <gas up the car>
2
a : to treat chemically with gas b : to poison or otherwise affect adversely with gas
3
slang : to please greatly
See gas defined for English-language learners
First Known Use of GAS
1852
GAS Defined for Kids
1gas
noun \ˈgas\
plural gas·es
Definition of GAS for Kids
1
: a substance (as oxygen or hydrogen) having no fixed shape and tending to expand without limit
2
3
: a gas or a mixture of gases used to make a person unconscious (as for an operation)
4
: a substance that poisons the air or makes breathing difficult
5
: gasoline
6
: a gaseous product of digestion or the discomfort caused by it
2gas
verb
gassedgas·singgas·ses
Definition of GAS for Kids
1
: to poison with gas <“Her boy was gassed in the trenches,” Grandma said. — Richard Peck, A Year Down Yonder>
2
: to supply with gas <Gas up the car.>
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