PREEMPTION

Definition

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