preemption

noun

1. the judicial principle asserting the supremacy of federal over state legislation on the same subject

Definition categories: thought

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

Definition categories: attribute

3. the right to purchase something in advance of others

Definition categories: attribute, right

4. a prior appropriation of something

- the preemption of bandwidth by commercial interests

Definition categories: act, appropriation