Dictionary.com

neon

[ nee-on ]
/ ˈni ɒn /
Save This Word!

noun

Chemistry. a chemically inert gaseous element occurring in small amounts in the earth's atmosphere, used chiefly in a type of electrical lamp. Symbol: Ne; atomic weight: 20.183; atomic number: 10; density: 0.9002 grams/liter at 0°C and 760 millimeters pressure.
a sign or advertising sign formed from neon lamps.

adjective

using or containing the gas neon.
made of or formed by a neon lamp or lamps: a neon sign.
of, relating to, or characteristic of a tawdry urban district or of gaudy nighttime entertainment.

QUIZZES

QUIZ YOURSELF ON "WAS" VS. "WERE"!

Were you ready for a quiz on this topic? Well, here it is! See how well you can differentiate between the uses of "was" vs. "were" in this quiz.
Question 1 of 7
“Was” is used for the indicative past tense of “to be,” and “were” is only used for the subjunctive past tense.

Meet Grammar Coach

Write or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing

Meet Grammar Coach

Improve Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help

Origin of neon

First recorded in 1895–1900; from New Latin, from Greek néon “new, recent” (neuter of néos ); see -on1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for neon

British Dictionary definitions for neon

neon
/ (ˈniːɒn) /

noun

a colourless odourless rare gaseous element, an inert gas occurring in trace amounts in the atmosphere: used in illuminated signs and lights. Symbol: Ne; atomic no: 10; atomic wt: 20.1797; valency: 0; density: 0.899 90 kg/m³; melting pt: –248.59°C; boiling pt: –246.08°C
(modifier) of or illuminated by neon or neon lampsneon sign

Word Origin for neon

C19: via New Latin from Greek neon new
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for neon

neon
[ nēŏn′ ]

n. Symbol Ne

A rare inert colorless gaseous element that occurs in air and glows reddish orange in an electric discharge. Atomic number 10.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for neon

neon
[ nēŏn′ ]

Ne

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. See Periodic Table.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
FEEDBACK