| 单词 | gas |
| 释义 | Word Frequency gas(ɡæs) nounWord forms: plural gases or gasses 1. 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 (sense 1), solid (sense 1)2. any substance that is gaseous at room temperature and atmospheric pressure 3. any gaseous substance that is above its critical temperature and therefore not liquefiable by pressure alone Compare vapour (sense 2)4. a. a fossil fuel in the form of a gas, used as a source of domestic and industrial heat See also coal gas, natural gas b. (as modifier) a gas cooker gas fire 5. a gaseous anaesthetic, such as nitrous oxide 6. mining firedamp or the explosive mixture of firedamp and air 7. the usual US, Canadian, and New Zealand word for petrol , See also gasoline 8. step on the gas 9. a toxic or suffocating substance in suspension in air used against an enemy 10. informal idle talk or boasting 11. slang a delightful or successful person or thing his latest record is a gas 12. US an informal name for flatus verbWord forms: gases, gasses, gassing or gassed 13. (transitive) to provide or fill with gas 14. (transitive) to subject to gas fumes, esp so as to asphyxiate or render unconscious 15. (intransitive) to give off gas, as in the charging of a battery 16. (transitive) (in textiles) to singe (fabric) with a flame from a gas burner to remove unwanted fibres 17. (intransitive; foll by to) informal to talk in an idle or boastful way (to a person) 18. (transitive) slang, mainly US and Canadian to thrill or delight Derived forms gasless (ˈgasless) adjective Word origin C17 (coined by J. B. van Helmont (1577–1644), Flemish chemist): modification of Greek khaos atmosphere |
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