English

Definition of argon noun from the Oxford Advanced Learner's Dictionary

 

argon

 noun
noun
BrE BrE//ˈɑːɡɒn//
 
; NAmE NAmE//ˈɑːrɡɑːn//
 
[uncountable] (symbol Ar)
 
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a chemical element. Argon is a gas that does not react with anything and is used in electric lights. Word Origin late 19th cent.: from Greek, neuter of argos ‘idle’, from a- ‘without’ + ergon ‘work’.
See the Oxford Advanced American Dictionary entry: argon