verb (used with object)
to occupy (land) in order to establish a prior right to buy.
to acquire or appropriate before someone else; take for oneself; arrogate: a political issue preempted by the opposition party.
to take the place of because of priorities, reconsideration, rescheduling, etc.; supplant: The special newscast preempted the usual television program.
verb (used without object)
to forestall or prevent (something anticipated) by acting first; preclude; head off: an effort to preempt inflation.
Origin: 1840–50, Related forms
Americanism; back formation from preemption
preemptor /priˈɛmptɔr, -tər/ [pree-emp-tawr, -ter] Show IPA , noun preemptory /priˈɛmptəri/ [pree-emp-tuh-ree] Show IPA , adjective
1. claim, appropriate, usurp.