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4 definitions found
 for xenon
From The Collaborative International Dictionary of English v.0.48 :

  Noble \No"ble\, a. [Compar. Nobler; superl. Noblest.] [F.
     noble, fr. L. nobilis that can be or is known, well known,
     famous, highborn, noble, fr. noscere to know. See know.]
     1. Possessing eminence, elevation, dignity, etc.; above
        whatever is low, mean, degrading, or dishonorable;
        magnanimous; as, a noble nature or action; a noble heart.
        [1913 Webster]
              Statues, with winding ivy crowned, belong
              To nobler poets for a nobler song.    --Dryden.
        [1913 Webster]
     2. Grand; stately; magnificent; splendid; as, a noble
        [1913 Webster]
     3. Of exalted rank; of or pertaining to the nobility;
        distinguished from the masses by birth, station, or title;
        highborn; as, noble blood; a noble personage.
        [1913 Webster]
     Note: Noble is used in the formation of self-explaining
           compounds; as, noble-born, noble-hearted, noble-minded.
           [1913 Webster]
     Noble gas (Chem.), a gaseous element belonging to group
        VIII of the periodic table of elements, not combining with
        other elements under normal reaction conditions;
        specifically, helium, neon, argon, krypton,
        xenon, or radon; also called inert gas.
     Noble metals (Chem.), silver, gold, and platinum; -- so
        called from their resistance to oxidation by air and to
        dissolution by acids. Copper, mercury, aluminium,
        palladium, rhodium, iridium, and osmium are sometimes
        [1913 Webster]
     Syn: Honorable; worthy; dignified; elevated; exalted;
          superior; sublime; great; eminent; illustrious;
          renowned; stately; splendid; magnificent; grand;
          magnanimous; generous; liberal; free.
          [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 :

  Xenon \Xen"on\ (z[e^]n"[o^]n; z[=e]"n[o^]n), n. [Gr. xe`non,
     neut. of xe`nos strange.] (Chem.)
     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[deg]
     C., and to a solid which melts at -111.9[deg] C. Symbol Xe
     (formerly also X); atomic number 54; atomic weight 131.3.
     [Webster 1913 Suppl. +PJC]

From WordNet (r) 3.0 (2006) :

      n 1: a colorless odorless inert gaseous element occurring in the
           earth's atmosphere in trace amounts [syn: xenon, Xe,
           atomic number 54]

From The Elements (07Nov00) :

  Symbol: Xe
  Atomic number: 54
  Atomic weight: 131.30
  Colourless, odourless gas belonging to group 18 on the periodic table
  noble gases.) Nine natural isotopes and seven radioactive isotopes are
  known. Xenon was part of the first noble-gas compound synthesized.
  Several others involving Xenon have been found since then. Xenon was
  discovered by Ramsey and Travers in 1898.

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