Neon definition

nēŏn
The element neon was discovered for the first time in the year 1898 by the scientist Sir William Ramsay.
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Neon is considered to be colorless, odorless, and tasteless noble gas.
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Neon is used for lighting, lightening arrestors, voltage detectors and television tubes.

An example of neon is the gas in the open sign in the front window of the restaurant.

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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.
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Electric signage made with neon lights.
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An extremely bright shade of a color.
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A neon tetra.
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Of, relating to, or containing neon.
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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.
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Extremely bright or vivid; fluorescent.

Neon purple.

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A chemical element, one of the noble gases, that is tasteless, odorless, and colorless, found in small quantities in the earth's atmosphere and used in discharge tubes, gas lasers, bright electrical signs, etc.: neon ionizes and glows with light when an electric current is sent through it: symbol, Ne; at. no. 10
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Containing neon for lighting purposes.

A neon tube.

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Lighted by neon.

Garish neon advertising signs.

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Bright, intense, gaudy, etc.

Neon colors.

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A rare colorless element in the noble gas group that occurs naturally in extremely small amounts in the atmosphere. It glows reddish orange when electricity passes through it, as in a tube in an electric neon light. Neon is also used for refrigeration. Atomic number 10; atomic weight 20.180; melting point −248.67°C; boiling point −245.95°C.
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(uncountable) The chemical element (symbol Ne) with an atomic number of 10.
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(countable) A form or sample of the element.
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(uncountable) Neon signs, collectively.
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(countable) A neon tetra fish.
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(physics) The major stable isotope of neon, 2010Ne, having ten protons and ten neutrons; it amounts to over 90% of the element in nature.
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(physics) A rare stable isotope of neon, 2110Ne, having ten protons and eleven neutrons; it amounts to less than 0.3% of the element in nature.
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(physics) A minor stable isotope of neon, 2210Ne, having ten protons and twelve neutrons; it amounts to about 9% of the element in nature.
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The definition of neon is a gas with ten electrons and ten protons.
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The element neon is identified as Ne on the periodic table.
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The atom has two energy levels that surround and spin around the outside of the nucleus.
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The name for the element neon was derived from the Greek word neos, meaning new.
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Other Word Forms

Noun

Singular:
neon
Plural:
neons

Origin of neon

  • From Greek neuter of neos new newo- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Ancient Greek νέον (neon), neuter of νέος (neos, “new").

    From Wiktionary