preemption

名词 preemption:

1. the judicial principle asserting the supremacy of federal over state legislation on the same subject
   同义词：pre-emption
2. the right of a government to seize or appropriate something (as property)
   同义词：pre-emption
3. the right to purchase something in advance of others
   同义词：pre-emption
4. a prior appropriation of something
   同义词：pre-emption

preemption 或 pre-emp.tion

n.（名词）

The right to purchase something before others, especially the right to purchase public land that is granted to one who has settled on that land.
先买权：先于他人的购某物的权利，尤指给予公地定居者的购买该公地的权利
A purchase made by such a right.
先买：通过该种权利所进行的购买
Prior seizure of, appropriation of, or claim to something, such as property.
先占：对某物如财产的抢先占有、占用或权利主张

来源：
pre-
pre-
Latin ômptiô ômptiôn- [buying] from ômptus past participle of Latin emere [to buy] * see em-
拉丁语 ômptiô ômptiôn- [买] 源自 ômptus 拉丁语 emere的过去分词 [买] *参见 em-