term:

Mature

mature vb

ma·tured
ma·tur·ing
vt
: to bring to maturity [a policy matured by the death of the insured]
vi
: to become due, payable, or enforceable
;specif
: to entitle one to immediate enjoyment of benefits [her pension right matured upon retirement] compare vest
mature adj

Source: Merriam-Webster's Dictionary of Law ©1996. Merriam-Webster, Incorporated. Published under license with Merriam-Webster, Incorporated.