Definition of "preempts" []

• Third-person singular simple present indicative form of preempt. (verb)

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• "The FDA has never before, in its entire history, claimed that a drug label preempts actions against health care professionals for failure-to-warn patients about risks."
• "They neither expect nor act as if a cellphone call preempts the "real universe" surrounding them."
• "The key legal question is whether the FDA-approved label preempts state product safety laws, as Wyeth and other drug companies argue."