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
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.
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