ne‧on /ˈniːɒn $ -ɑːn/ noun [uncountable]
[Date: 1800-1900; Language: Greek; Origin: neos 'new']
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.

[TahlilGaran] Dictionary of Contemporary English ▲