Longman Dictionary of Contemporary English homepage

Topic: CHEMISTRY

Date: 1800-1900
Language: Greek
Origin: neos 'new'

neon

noun
     
neon
ne‧on [uncountable]
TPHC a colourless gas that is found in small quantities in the air and is used in glass tubes to produce a bright light in electric advertising signs. It is a chemical element: symbol Ne
neon lights/signs (=ones that use neon)
the neon lights of Las Vegas
A neon sign flashed on and off above the door.
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