American English

Definition of femme fatale noun from the Oxford Advanced American Dictionary

 

femme fatale

 noun
noun
NAmE//ˌfɛm fəˈtæl//
 
, NAmE//ˌfɛm fəˈtɑl//
 
(pl. femmes fatales
NAmE//ˌfɛm fəˈtælz//
 
, NAmE//ˌfɛm fəˈtɑlz//
 
, NAmE//ˌfɛm fəˈtæl//
 
, NAmE//ˌfɛm fəˈtɑl//
 
)
(from French)
 
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a very beautiful woman that men find sexually attractive but who brings them trouble or unhappiness She was his femme fatale.
See the Oxford Advanced Learner's Dictionary entry: femme fatale