poison pill

基本解释

According to the Citigroup report, in 2002 some 300 of the companies in the S&P 500 index—in other words, 60% of them—had a poison pill, and 302 had a staggered board.
花旗银行的报告提到，2002年标准普尔500指数中有300家，也就是60%的公司采取毒丸策略，302家建立了分期分级董事会制度。
It offered $3.5 billion for Long Island-based OSI, which specialises in cancer treatments, and went to court to prevent it from trying to block an acquisition with a poison pill.
它拿出35亿美金收购位于长岛的OSI公司，这家公司是做癌症治疗生意的。然后，它又通过法律途径，防止OSI采取毒丸计划阻挠其收购。
Activists have also demanded revisions to articles of incorporation and the unwinding of recently established "poison pill" measures aimed at preventing hostile takeovers.
激进主义者也要求修改公司条例，并且放松最近建立起来的“毒丸”制度，这种制度的目标是阻止敌对的接管。

Never mind the poison pill that Netflix put in place after Icahn acquired a near-10% stake.
FORBES: Connect
Unfortunately, the judge ruling in the case upheld the legality of Poison Pill plans yesterday evening.
FORBES: Delaware Court Poison Pill Ruling Bad For Shareholder Value
Soon after, Office Depot created a poison pill defense that would fend off hostile takeovers.
FORBES: M&A Pulse Shifts To Pens and Paper: Office Max, Office Depot Said To Mull Merger

A poison pill refers to what some companies do to reduce their value in order to prevent themselves being taken over by another company.