Longman Dictionary of Contemporary English homepage

Date: 1800-1900
Language: Greek
Origin: argos 'lazy'; because it does not react chemically

argon

noun
     
Related topics: Elements
ar‧gon [uncountable]
a colourless gas that is found in very small quantities in the air and is sometimes used in electric light bulbs. It is a chemical element: symbol Ar

Dictionary pictures of the day
Do you know what each of these is called?
What is the word for picture 1? What is the word for picture 2? What is the word for picture 3? What is the word for picture 4?
Click on any of the pictures above to find out what it is called.

Explore our topic dictionary