perpetuity
perpetuity n. (1)永续；永存 (2)(古)永业；永久拥有(的权益)；不得转让的权益 (3)(财产的)永久处分；财产永久权 永久或长期限制不动产权益转让的财产处分，属违法行为。 (→rule against perpetuities)
PERPETUITY
perpetuity
perpetuity (p[schwa]r-p[schwa]-t[y]oo-[schwa]-tee). 1. The state of continuing forever. 2. Hist. An unbarrable entail. 3. Hist. An inalienable interest. 4. An interest that does not take effect or vest within the period prescribed by law. • In reference to the rule against perpetuities, only sense 4 is now current. See RULE AGAINST PERPETUITIES. [Cases: Perpetuities 4.