carbon monoxide
Pronunciation
Noun
B1 Intermediate
Quick answer
A colourless, odourless and highly toxic gas produced when fuels burn without enough oxygen.
Usage notes
Because it has no smell or colour, homes with gas appliances are advised to install a dedicated detector.
Test yourself
Which word fits the gap? "A faulty boiler can leak _____ into a house without anyone noticing until it's dangerous."
Answer: carbon monoxide
In your own words, what does "carbon monoxide" mean?
A colourless, odourless and highly toxic gas produced when fuels burn without enough oxygen.
Learn next at B1
- carbonation The process of adding carbon dioxide gas to a liquid, creating bubbles...
- cardinal Of the greatest importance, forming the basic foundation of something.
- cardinal virtue One of the four basic moral qualities, traditionally wisdom, justice,...
- careless Not paying enough attention to what you are doing, so that mistakes ha...
- caricature A picture or description of someone that exaggerates certain features...
- carnage Widespread and violent destruction, especially killing.