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English definition of “neon”

neon

noun [U]     /ˈniː.ɒn/ US  /-ɑːn/ (symbol Ne)
a chemical element that is a gas with no smell or colour , does not react with other chemicals , and shines red when an electric current goes through it: a neon light / sign Chemical elements
(Definition of neon noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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