ar‧gon /ˈɑːɡɒn $ ˈɑːrɡɑːn/ noun [uncountable]
[Date: 1800-1900; Language: Greek; Origin: argos 'lazy'; because it does not react chemically]
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

[TahlilGaran] Dictionary of Contemporary English ▲