1. a 5,000 pound laser-guided bomb that can be programmed to penetrate to a given depth before exploding; used to penetrate hardened underground facilities; [syn: Bunker Buster, Guided Bomb Unit-28, GBU-28]
WordNet (r) 3.0 (2006):
Bunker Buster
n 1: a 5,000 pound laser-guided bomb that can be programmed to
penetrate to a given depth before exploding; used to
penetrate hardened underground facilities [syn: Bunker
Buster, Guided Bomb Unit-28, GBU-28]