pre emption

英 美
  • 占先
  • emption [法]购买
  • pre abbr.PetroleumRefiningEngineer炼油工程师
名词 pre-emption:
  1. the judicial principle asserting the supremacy of federal over state legislation on the same subject

  2. the right of a government to seize or appropriate something (as property)

  3. the right to purchase something in advance of others

  4. a prior appropriation of something