Definition of poison pill noun from the Oxford Advanced Learner's Dictionary


poison pill

BrE BrE//ˌpɔɪzn ˈpɪl//
; NAmE NAmE//ˌpɔɪzn ˈpɪl//
(informal, business)
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a form of defence used by a company to prevent, or to reduce the effect of, a takeover bid that they do not want, for example by selling some of their important possessions
See the Oxford Advanced American Dictionary entry: poison pill