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1,485 results for: Gas

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Dictionary Entries (23 more entries. View all »)
Dictionary.com Unabridged (v 1.1)Cite This Source
gas    Audio Help   [gas] Pronunciation Key noun, plural gas·es, verb, gassed, gas·sing.
–noun
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.
a.gasoline.
b.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.
a.empty talk.
b.a person or thing that is very entertaining, pleasing, or successful: The party was an absolute gas, and we loved it.
c.a person or thing that affects one strongly.
–verb (used with object)
10.to supply with gas.
11.to overcome, poison, or asphyxiate with gas or fumes.
12.to singe (yarns or fabrics) with a gas flame to remove superfluous fibers.
13.to treat or impregnate with gas.
14.Slang.
a.to talk nonsense or falsehood to.
b.to amuse or affect strongly: Her weird clothes really gas me.
–verb (used without object)
15.to give off gas, as a storage battery being charged.
16.Slang.
a.to indulge in idle, empty talk.
b.to become drunk (often fol. by up).
—Verb phrase
17.gas up, to fill the gasoline tank of an automobile, truck, or other vehicle.
—Idiom
18.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.
[Origin: 1650–60; coined by J. B. van Helmont (1577–1644), Flemish chemist; suggested by Gk cháos atmosphere]

—Related forms
gasless, adjective
Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.

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Thesaurus Entries (1 more entry. View all »)
  Synonym Collection v1.1Cite This Source
Main Entry:  gas
Part of Speech:  noun
Synonyms:  ether, fuel, inert, laughing, marsh, noble, tear, acetylene, ammonia, butane, carbon dioxide, carbon monoxide, cyanogen, ethane, ethene, ethylene, helium, hydrogen, hydrogen sulfide, ketene, krypton, methane, mustard, nitrous oxide, oxygen, ozone, propane, radon, xenon
Source:  Synonym Collection v1.1
Copyright © 2008 by Lexico Publishing Group, LLC.
  Roget's II: The New ThesaurusCite This Source
Main Entry:  chatter
Part of Speech:  noun
Definition:  Incessant and usually inconsequential talk.
Synonyms:  babble, blab, blabber, chat, chitchat, jabber, palaver, prate, prattle, small talk
Source:  Roget's II: The New Thesaurus, Third Edition
by the Editors of the American Heritage® Dictionary.
Copyright © 2003, 1995 by Houghton Mifflin Harcourt Publishing Company.
Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
  Roget's II: The New ThesaurusCite This Source
Main Entry:  chatter
Part of Speech:  verb
Definition:  To talk volubly, persistently, and usually inconsequentially.
Synonyms:  babble, blabber, chitchat, clack, jabber, palaver, prate, prattle, rattle, run on
Idioms:  run off at the mouth, breeze
Source:  Roget's II: The New Thesaurus, Third Edition
by the Editors of the American Heritage® Dictionary.
Copyright © 2003, 1995 by Houghton Mifflin Harcourt Publishing Company.
Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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Encyclopedia Articles (1,456 more entries. View all »)
Columbia Electronic EncyclopediaCite This Source


gas, in physics, one of the three commonly recognized states of matter, the other two being solid and liquid. A substance in the gaseous state has neither definite shape nor definite volume. Like liquids, gases are fluids and assume the shape of their containers. Unlike liquids, they will expand to fill any container, regardless of its size. All gases condense into liquids or solids when sufficiently cooled or compressed (see compression; condensation; liquefaction). Most gases first liquefy, but some pass directly into the solid state (see sublimation); carbon dioxide, for example, can condense into dry ice. Some gases are extremely soluble in certain liquids, the liquid absorbing many times its own volume of gas. Some solids, by a process called adsorption, can take up many times their own volume of certain gases. The behavior of gases under various conditions of pressure, temperature, and volume is described by the various gas laws. Many of the properties of gases can be understood by considering the fact that only a small part of the volume of a gas is occupied by its atoms or molecules, which are in rapid, random motion. See kinetic-molecular theory of gases. 
The Columbia Electronic Encyclopedia Copyright © 2004, Columbia University Press.
Licensed from Columbia University Press




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