X x


    • US Pronunciation
    • US IPA
    • UK Pronunciation
    • UK IPA
    • [zee-non, zen-on]
    • /ˈzi nɒn, ˈzɛn ɒn/
    • /ˈzen.ɒn/
    • US Pronunciation
    • US IPA
    • [zee-non, zen-on]
    • /ˈzi nɒn, ˈzɛn ɒn/

Definitions of xenon word

  • noun xenon a heavy, colorless, chemically inactive, monatomic gaseous element used for filling radio, television, and luminescent tubes. Symbol: Xe; atomic weight: 131.30; atomic number: 54. 1
  • noun xenon The chemical element of atomic number 54, a member of the noble gas series. It is obtained by distillation of liquid air and is used in some specialized electric lamps. 1
  • noun xenon chemical element: gas 1
  • noun xenon a colourless odourless gaseous element occurring in trace amounts in air; formerly considered inert it is now known to form compounds and is used in radio valves, stroboscopic and bactericidal lamps, and bubble chambers. Symbol: Xe; atomic no: 54; atomic wt: 131.29; valency: 0; density: 5.887 kg/m3; melting pt: –111.76°C; boiling pt: –108.0°C 0
  • noun xenon a heavy, colorless, gaseous chemical element, one of the noble gases, present in the air in minute quantities and found to react with fluorine and other reactive compounds and to form salts and acids in solution: used in bubble chambers, electric luminescent tubes, lasers, vacuum tubes, etc.: symbol, Xe; at. no., 54 0
  • noun xenon A heavy, gaseous chemical element (symbol Xe) of the noble gases group with an atomic number of 54. 0

Information block about the term

Origin of xenon

First appearance:

before 1898
One of the 18% newest English words
1898; < Greek xénon, neuter of xénos strange (see -on2); name introduced by William Ramsay, the element's discoverer

Historical Comparancy

Parts of speech for Xenon


xenon popularity

A common word. It’s meaning is known to most children of preschool age. About 90% of English native speakers know the meaning and use the word.
Most Europeans know this English word. The frequency of it’s usage is somewhere between "mom" and "screwdriver".

Top questions with xenon

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See also

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