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English definition of “neon”

neon

noun [U] uk   /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
(Definition of neon from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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