Tra từ gas - Từ điển Oxford Advanced Learner 8th

gas [gas gases gassed gassing] noun, verb BrE [ɡæs] NAmE [ɡæs]
noun (pl. gasesor less frequent gas·ses)

NOT SOLID/LIQUID
1. countable, uncountable any substance like air that is neither a solid nor a liquid, for example ↑hydrogen and ↑oxygen are both gases
• Air is a mixture of gases.
•CFC gases
•a gas bottle/cylinder (= for storing gas)
see also ↑greenhouse gas
2. uncountable a particular type of gas or mixture of gases used as fuel for heating and cooking
•a gas cooker/fire/furnace/oven/ring/stove
•a gas explosion/leak
•gas central heating
• (BrE)Preheat the oven to gas mark 5 (= a particular temperature of a gas oven)
see also Calor gas, ↑coal gas, ↑natural gas
3. uncountable a particular type of gas used during a medical operation, to make the patient sleep or to make the pain less
•an anaesthetic gas
• Did you have gas or an injection?
•During the birth she was given gas and air.
see also ↑laughing gas
4. uncountable a particular type of gas used in war to kill or injure people, or used by the police to control people
•a gas attack
see also ↑CS gas, ↑mustard gas, ↑nerve gas, ↑tear gas

IN VEHICLE
5. (also gas·oline) (both NAmE) (BrE pet·rol)uncountable a liquid obtained from ↑petroleum, used as fuel in car engines, etc
•a gas station
•a gas pump
•to fill up the gas tank
6. the gassingular (especially NAmE) = ↑gas pedal
•Step on the gas, we're late.

FUN
7. singular (especially NAmE)a person or an event that is fun
•The party was a real gas.

IN STOMACH
8. (NAmE) (BrE wind)uncountable air that you swallow with food or drink; gas that is produced in your stomach or ↑intestines that makes you feel uncomfortable

Word Origin:
mid 17th cent.: invented by J. B. van Helmont (1577–1644), Belgian chemist, to denote an occult principle which he believed to exist in all matter; suggested by Greek khaos ‘chaos’, with Dutch g representing Greek kh.

Thesaurus:
gas noun
1. C, U
•Air is a mixture of gases.
chemical • • substance • • element •
a natural gas/chemical/substance
a toxic gas/chemical/substance/element
a radioactive gas/chemical/substance/element
2. U (AmE)
•He still had plenty of gas in the tank.
fuel • • diesel • |BrE petrol • |AmE gasoline •
unleaded gas/fuel/petrol/gasoline
sth runs on gas/fuel/diesel/pertrol/gasoline
fill the car up with gas/diesel/petrol
run out of gas/fuel/diesel/petrol

Example Bank:
•Chinese gas reserves are now being tapped.
•He hit the gas pedal and headed off.
•I lit the gas and put the soup on to warm.
•I prefer to cook with gas.
•It gives off a poisonous gas as it decomposes.
•Local gas works were closed as natural gas became available.
•Millions of Jews were sent to the gas chambers by the Nazis.
•Noxious gases had built up in the sewer.
•Police used water cannon and tear gas against demonstrators.
•Set the oven at gas mark 4.
•Toxic gases can escape through one of the pipes.
•We stopped at a gas station to fill up.
•greenhouse gas emissions
•pollution from greenhouse gases
•tapping the North Sea gas fields
•All the apartments are fitted with gas central heating.
•He still had plenty of gas in the tank.
•Much of Britain's energy is supplied by natural gas from the North Sea.
•Preheat the oven to gas mark 5.
•Producing methane gas from organic waste is another extremely practical use of resources.
•The explosion was caused by a gas leak.
•We have a gas cooker in the kitchen.

see be cooking with gas at ↑cook _v.
verb (-ss-)

KILL/HARM WITH GAS
1. transitive ~ sb/yourself to kill or harm sb by making them breathe poisonous gas
•She gassed herself with fumes from the car's exhaust pipe.
•He was gassed in the war.

TALK
2. intransitive (usually used in the progressive tenses) (old-fashioned, informal)to talk for a long time about things that are not important
Syn: ↑chat
•I thought he'd never stop gassing!
Verb forms:

Word Origin:
mid 17th cent.: invented by J. B. van Helmont (1577–1644), Belgian chemist, to denote an occult principle which he believed to exist in all matter; suggested by Greek khaos ‘chaos’, with Dutch g representing Greek kh.

See also: ↑gasoline ▪ ↑petrol ▪ ↑wind