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



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 Originlate 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