Category:Krypton

Kryp"ton, n. [NL., fr. Gr., neut. of  hidden.] (Chem.)

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, -- 152º C.; symbol, Kr; atomic weight, 83.0.