English

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

 

dumdum

 noun
noun
BrE BrE//ˈdʌmdʌm//
 
; NAmE NAmE//ˈdʌmdʌm//
 
(also dumdum bullet)
 
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a bullet that spreads out and breaks into many pieces when it hits somebody Word Origin late 19th cent.: from Dum Dum, name of a town and arsenal near Calcutta, India, where such bullets were first produced.
See the Oxford Advanced American Dictionary entry: dumdum