(uncountable) The chemical element (symbol Ne) with an atomic number of 10. The second of the noble gases, it is a colourless, odorless inert gas. / (countable) A form or sample of the element.

(of a color) That resembles a neon light; extremely bright; fluorescent

plural of neon (the fish, neon tetras)

Illuminated with neon lights.

Paracheirodon innesi (syn. Hyphessobrycon innesi), a small, tropical American fish, popular as an aquarium fish.

A small gas discharge lamp containing neon gas, sometimes with other noble gases to add colour.

neon tetra

lighting by neon lamps

An illuminated sign constructed from fluorescent lights in the form of bent glass tubes; the different colours being obtained by adding different noble gases to the neon.

A neon lamp. / The light from such a lamp.