preemption

/priหหˆษ›mpสƒษ™n/

IPA: /P R IY0 EH1 M P SH AH0 N/

noun
  1. 1

    The purchase of something before it is offered for sale to others.

  2. 2

    The purchase of public land by the occupant.

  3. 3

    The temporary interruption of a task without its cooperation and with the intention of resuming it at a later time.

  4. 4

    The displacement of a lower jurisdiction's laws when they conflict with those of a higher jurisdiction.

Source: https://en.wiktionary.org/wiki/preemption