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gas
Audio Help [gas] Pronunciation Key noun, plural gas·es, verb, gassed, gas·sing.
—Related forms
Audio Help [gas] Pronunciation Key noun, plural gas·es, verb, gassed, gas·sing. –noun
–verb (used with object)
–verb (used without object)
—Verb phrase
—Idiom
| 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.
|
| 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.
|
| 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.
|
| 15. | to give off gas, as a storage battery being charged. |
| 16. | Slang.
|
| 17. | gas up, to fill the gasoline tank of an automobile, truck, or other vehicle. |
| 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. |
Gases
To learn more about Gases visit Britannica.com
| © 2008 Encyclopædia Britannica, Inc. |
| gas
Audio Help (gās) Pronunciation Key
n. pl. gas·es or gas·ses
v. gassed, gas·sing, gas·es or gas·ses v. tr.
v. intr.
Phrasal Verb(s): gas up To supply a vehicle with gas or gasoline: gas up a car; gassed up before the trip. [Dutch, an occult physical principle supposed to be present in all bodies, alteration of Greek khaos, chaos, empty space, coined by Jan Baptista van Helmont (1577-1644), Flemish chemist.] |
| The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2006 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved. |
| gas
Audio Help (gās) Pronunciation Key
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 (gās'ē-əs, gāsh'əs) |
| The American Heritage® Science Dictionary Copyright © 2002 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved. |
GASES
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