neon

A rare, inert gaseous element occurring in the atmosphere to the extent of 18 parts per million and obtained by fractional distillation of liquid air. It is colorless but glows reddish orange in an electric discharge and is used in lasers, as a cryogen, and in cathode-ray tubes and other display devices. Atomic number 10; atomic weight 20.180; melting point −248.59°C; boiling point −246.08°C. cross-reference: Periodic Table.

Electric signage made with neon lights.

An extremely bright shade of a color.

A neon tetra.

Of, relating to, or containing neon.

Of or relating to a form of lighting used especially on advertising signs and consisting of glass tubes filled with neon or other gases that emit colored light when subjected to an electric current.

Extremely bright or vivid; fluorescent.

An elementary substance occurring in gaseous form in the earth’s atmosphere: atomic weight, 20.

The chemical element (symbol Ne) with an atomic number of 10.

A form or sample of the element.