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BNC: 47227 COCA: 40089
krypton
noun [U] chemistry /ˈkrɪptɒn/
  1. a chemical element that is a colourless gas. Its symbol is Kr and it is used in some types of electric light.
     Synonyms and related words
    Gases: acetylene, ammonia, argon...
BNC: 47227 COCA: 40089
BNC: 47227 COCA: 40089

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