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

neon

noun
 
/ˈniːɒn/
 
/ˈniːɑːn/
[uncountable]
(symbol Ne)
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  1. a chemical element. Neon is a gas that does not react with anything and that shines with a bright light when electricity is passed through it.
    • neon lights/signs
    Topics Physics and chemistryc1
    Oxford Collocations DictionaryNeon is used before these nouns:
    • light
    • sign
    See full entry
    Word Originlate 19th cent.: from Greek, literally ‘something new’, neuter of the adjective neos.
See neon in the Oxford Advanced American Dictionary
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