neon

[nee-on]
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noun
  1. 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 g/l at 0°C and 760 mm pressure.
  2. neon lamp.
  3. a sign or advertising sign formed from neon lamps.
adjective
  1. using or containing the gas neon.
  2. made of or formed by a neon lamp or lamps: a neon sign.
  3. of, relating to, or characteristic of a tawdry urban district or of gaudy nighttime entertainment.

Origin of neon

1895–1900; < New Latin < Greek néon new, recent (neuter of néos); see -on1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018


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British Dictionary definitions for neon

neon

noun
  1. 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
  2. (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

Word Origin and History for neon
n.

1898, coined by its discoverers, Sir William Ramsay and Morris W. Travers, from Greek neon, neuter of neos "new" (see new); so called because it was newly discovered. Neon sign is attested from 1927.

Online Etymology Dictionary, © 2010 Douglas Harper

neon in Medicine

neon

[nēŏn′]
n. Symbol Ne
  1. 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.

neon in Science

neon

[nēŏn′]
Ne
  1. 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.