Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A colorless, odorless, highly unreactive gaseous element found in minute quantities in the atmosphere, extracted commercially from liquefied air and used in stroboscopic, bactericidal, and laser-pumping lamps. Atomic number 54; atomic weight 131.29; melting point -111.9°C; boiling point -107.1°C; density (gas) 5.887 grams per liter; specific gravity (liquid) 3.52 (-109°C). See Table at element.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A heavy, gaseous chemical element (symbol Xe) of the noble gases group with an atomic number of 54.

from the GNU version of the Collaborative International Dictionary of English

  • n. A very heavy, inert gaseous element of the noble gas group, occurring in the atmosphere in the proportion of one volume is about 20 millions. It was discovered by Ramsay and Travers in 1898. It can be condensed to a liquid boiling at -107° C., and to a solid which melts at -111.9° C. Symbol Xe (formely also X); atomic number 54; atomic weight 131.3.

from The Century Dictionary and Cyclopedia

  • n. In chem., the heaviest of the five recently discovered elementary substances present in gaseous form in the atmosphere.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a colorless odorless inert gaseous element occurring in the earth's atmosphere in trace amounts

Etymologies

From Greek, neuter of xenos, foreign, strange; see xeno-.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Ancient Greek ξένον, neuter of ξένος (xenos, "foreign, strange"). (Wiktionary)

Examples

  • While krypton has a considerable vapour pressure at the temperature of boiling air, the vapour pressure of xenon is hardly appreciable; hence their separation, although tedious, presented no particular difficulty.

    Sir William Ramsay - Nobel Lecture

  • The word Xenon comes from the Greek word xenon which means stranger it was discovered by Sir William Ramsay in 1898.

    CreationWiki - Recent changes [en]

  • The word Xenon comes from the Greek word xenon which means stranger it was discovered by Sir William Ramsay in 1898. has an Atomic Number of 86, the Atomic Symbol Rn, and the Atomic Mass of 222. 018g / mol.

    CreationWiki - Recent changes [en]

  • I’ll be using a Nokia N82, which has an amazing 5-megapixel camera, brilliant in every sense of the word xenon flash and built-in GPS.

    Strange Attractor » 2008 » August

  • Now, it's important to note this gas, it's called xenon 133.

    CNN Transcript May 25, 2009

  • The radioactive gas xenon, which is often the byproduct of unexpected nuclear fission, was detected at the Fukushima Daiichi plant during tests.

    Telegraph.co.uk - Telegraph online, Daily Telegraph and Sunday Telegraph

  • Tepco said it may have found xenon, which is associated with nuclear fission, while examining gases taken from the reactor, according to an e-mailed statement today.

    BusinessWeek.com -- Top News

  • Nuclear explosions produce an excited form called xenon-133m, in which the atomic nucleus is boosted to a higher-energy state, but it is not known exactly how sensitive detectors are to this form because there has been no way to make pure samples of xenon-133m with which to test them.

    New Scientist - Online News

  • Nuclear explosions produce an excited form called xenon-133m, in which the atomic nucleus is boosted to a higher-energy state.

    Gaea Times (by Simple Thoughts) Breaking News and incisive views 24/7

  • Researchers at the national lab in Richland earlier worked on ways to detect radioactive xenon, which is released during nuclear explosions.

    Tri-City Herald: Front

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Comments

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  • Xe

    December 2, 2007

  • Not to be confused with a certain warrior princess.

    February 14, 2007

  • Can be spelled with the Periodic Table of Elements symbols: XeNoN

    December 12, 2006