Gas ɡæs Air Gases Mixture Poisonous Type I

• air is a mixture of gases.
• carbon monoxide is a poisonous gas.
• fossil fuels like oil and gas
• can you smell gas?

gas

1. any substance like air that is neither a solid nor a liquid, for example hydrogen or oxygen
• SEE ALSO greenhouse gas
  https://www.oxfordlearnersdictionaries.com/definition/english/greenhouse-gas
• Air is a mixture of gases.
• Carbon monoxide is a poisonous gas.

Extra Examples

• It gives off a poisonous gas as it decomposes.
• Noxious gases had built up in the sewer.
• Toxic gases can escape through one of the pipes.
• Producing methane gas from organic waste is another extremely practical use of resources.
• CFC gases
2. a particular type of gas or mixture of gases used as fuel for heating and cooking
• SEE ALSO Calor gas™
  https://www.oxfordlearnersdictionaries.com/definition/english/calor-gastm
• fossil fuels like oil and gas
• Can you smell gas?
• a gas cooker/stove/fire
• gas central heating
• a gas leak/explosion
• plans to build a new gas pipeline
• Gas prices have risen sharply.
• The country has huge gas reserves.
• a gas canister/cylinder (= for storing gas)
• Preheat the oven to gas mark 5 (= a particular temperature of a gas oven).

Extra Examples

• Chinese gas reserves are now being tapped.
• I lit the gas and put the soup on to warm.
• I prefer to cook with gas.
• Local gas works were closed as natural gas became available.
• tapping the North Sea gas fields
• The explosion was caused by a gas leak.
3. a particular type of gas used during a medical operation, to make the patient unconscious 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.
4. a particular type of gas used in war to kill or injure people, or used by the police to control people
• SEE ALSO CS gas
  https://www.oxfordlearnersdictionaries.com/definition/english/cs-gas
• a gas attack
5. a liquid obtained from petroleum, used as fuel in car engines, etc.
• SEE ALSO gas station (1)
  https://www.oxfordlearnersdictionaries.com/definition/english/gas-station#gasstation_sng_1
• to run out of gas
• I still had plenty of gas in the tank.
• He supported himself with a night job pumping gas.
• a gas pump
• to fill up the gas tank
6. the pedal in a car or other vehicle that you press with your foot to control the speed of the engine
• Step on the gas, we're late.
7. a person or an event that is fun
• The party was a real gas.
8. air that you swallow with food or drink; gas that is produced in your stomach or intestines that makes you feel uncomfortable
9. to be doing something very well and successfully

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.