MIRV 
(mûrv)
(mûrv)n.
1. An offensive ballistic missile system having warheads aimed at independent targets that can be launched by a single booster rocket.
2. One of these warheads.
v. MIRVed, MIRV·ing, MIRVs
v.tr.
To provide with multiple independent warheads.
v.intr.
To equip a military force with a missile system of multiple independent warheads.
[m(ultiple) i(ndependently-targeted) r(eentry) v(ehicles).]