Dictionary

preemption

3 ENTRIES FOUND:

preemption

noun pre·emp·tion \-ˈem(p)-shən\

Definition of PREEMPTION

1
a :  the right of purchasing before others; especially :  one given by the government to the actual settler upon a tract of public land
b :  the purchase of something under this right
2
:  a prior seizure or appropriation :  a taking possession before others
3
:  a doctrine in law according to which federal law supersedes state law when federal law is in conflict with a state law
4
:  a policy of launching a preemptive attack in order to prevent a suspected imminent attack

Examples of PREEMPTION

  1. <longtime residents resented the preemption of their urban neighborhood by this influx of affluent yuppies>

Origin of PREEMPTION

Medieval Latin praeemption-, praeemptio previous purchase, from praeemere to buy before, from Latin prae- pre- + emere to buy — more at redeem
First Known Use: 1602

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