Definition - Transitive Verb [Anglo-French sequestrer, from Middle French, from Latin sequestrare to hand over to a trustee, from sequester third party to whom disputed property is entrusted, agent, from secus beside, otherwise] 1: to place (as a jury or witness) in seclusion or isolation Juries are sequestered in order to preserve their impartiality. Witnesses are sequestered so that their testimony is not influenced by the testimony of prior witnesses. 2 a: to seize esp. by a writ of sequestration b: to deposit (property) in sequestration Pronunciationsi-'kwes-t&r