Definition of "pre-emption" [pre•ëmp•tion]

• Alternative spelling of preemption. (noun)

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• "Does that sort of application cause a pre-emption issue?"
• "The argument that SB 1070 is unconstitutional is based on the doctrine of "pre-emption.""
• "The court's Republican appointees all accepted a federal pre-emption argument in a state consumer rights case earlier this year, although since this pre-empted a more liberal policy this may not be a reliable indicator."