argon
noun/ˈɑːɡɒn/
/ˈɑːrɡɑːn/
[uncountable] (symbol Ar)
- a chemical element. Argon is a gas that does not react with anything and is used in electric lights.Word Originlate 19th cent.: from Greek, neuter of argos ‘idle’, from a- ‘without’ + ergon ‘work’.
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argon