Definition of kryptonite in English:

kryptonite

Line breaks: kryp¦ton|ite
Pronunciation: /ˈkrɪptənʌɪt
 
/

noun

[mass noun]
  • (In science fiction) an alien mineral with the property of depriving Superman of his powers: figurative girls of her sort are kryptonite to the developing hearts of adolescent boys
    More example sentences
    • Remember when polystyrene foam was environmental kryptonite?
    • These things are like kryptonite to terrorists.
    • Did the Raiders uncover Pennington's kryptonite?

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