measuring life.Under the rule against perpetuities, the last beneficiary to die who was alive at the testator’s death and who usu. holds a preceding interest. • A measuring life is used to determine whether an interest will vest under the rule against perpetuities. See RULE AGAINST PERPETUITIES. Cf. LIFE IN BEING. [Cases: Perpetuities 4(1). C.J.S. Perpetuities §§ 2, 12,

15–18, 20–24, 27–28, 30, 33, 35–36, 52–53.]

[Blacks Law 8th]