Definition of "Sequester" :

verb: set apart from others

"The dentist sequesters the tooth he is working on."

verb: keep away from others

"He sequestered himself in his study to write a book."

verb: undergo sequestration by forming a stable compound with an ion

"The cations were sequestered."

verb: take temporary possession of as a security, by legal authority

verb: requisition forcibly, as of enemy property

"The estate was sequestered."