Definition of “neon” - English Dictionary

british dictionary

(Definition of “neon” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

“neon” in American English

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neonnoun [ U ]

us /ˈni·ɑn/

a colorless gas, one of the chemical elements, that is often used in signs because it produces a bright light when an electric current goes through it:

a neon sign

(Definition of “neon” from the Cambridge Academic Content Dictionary © Cambridge University Press)