Hypertext Webster Gateway: "xenon"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Xenon \Xen"on\, n. [Gr. ?, neut. of ? strange.] (Chem.)
A very heavy, inert gaseous element 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 -109[deg] C., and to
a solid which volatilizes without melting. Symbol Xe or X;
atomic weight 130.2.
From WordNet (r) 1.7 (wn)
xenon
n : a colorless odorless inert gaseous element occurring in the
earth's atmosphere in trace amounts [syn: {Xe}, {atomic
number 54}]
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