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Definition of krypton noun from the Oxford Advanced Learner's Dictionary

krypton

noun
 
/ˈkrɪptɒn/
 
/ˈkrɪptɑːn/
[uncountable]
(symbol Kr)
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  1. a chemical element. Krypton is a gas that does not react with anything, used in fluorescent lights and lasers.
    Word Originlate 19th cent.: from Greek krupton, neuter of kruptos ‘hidden’.
See krypton in the Oxford Advanced American Dictionary
Check pronunciation: krypton

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adjective
 
 
From the Topic
The environment
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