LEARNit Dictionary
kryptonite
noun
/ˈkrɪptənaɪt/
UK
/ˈkrɪptənaɪt/
US
1
a chemical element that exists only in stories about Superman, a character with special powers that he loses when he is near to kryptonite
کریپتونیت, عامل ضعف سوپرمن