Krypton
Pronunciation : Kryp"ton, n. [NL., fr. Gr.
Part of Speech : neut.
Definition : Defn: An inert gaseous element of the argon group, occurring in air to the extent of about one volume in a million. It was discovered by Ramsay and Travers in 1898. Liquefying point, -- 152? C.; symbol, Kr; atomic weight, 83.0.
of hidden.] (Chem.)
Source : Webster's Unabridged Dictionary, 1913