GBU-28 - a 5,000 pound laser-guided bomb that can be programmed to penetrate to a given depth before exploding; used to penetrate hardened underground facilitiesBunker Buster, Guided Bomb Unit-28
GBU-28
noun
Synonyms for GBU-28
noun a 5,000 pound laser-guided bomb that can be programmed to penetrate to a given depth before exploding