English dictionary
krypton
/'kr/I/pt/A/n/
Definitions, examples, synonyms and antonyms from WordNet 3.0.
noun
-
a colorless element that is one of the six inert gasses; occurs in trace amounts in air
Source: WordNet 3.0
-
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, <i>Kr</i>; atomic weight, 83.0.
Source: webster1913