S: (n) cluster bomb (bomb consisting of a canister that is dropped from a plane and that opens to release a cluster of bomblets (usually fragmentation bombs) over a wide area) "cluster bombs cannot be targeted precisely"
S: (n) gas shell ((military) bomb consisting of an explosive projectile filled with a toxic gas that is released when the bomb explodes)
S: (n) general-purpose bomb, GP bomb (a large bomb (500 to 2,000 pounds that is 50% explosive) whose explosion creates a blast and whose metal casing creates some fragmentation effect)
S: (n) grenade (a small explosive bomb thrown by hand or fired from a missile)
S: (n) megaton bomb (a nuclear weapon with an explosive power equivalent to one million tons of TNT)
S: (n) microwave bomb, E-bomb (a bomb that explodes in midair and releases a massive burst of electromagnetic energy sufficient to disable computers and telecommunications without killing people or damaging buildings)
S: (n) penetration bomb (a bomb with about 30% explosive and a casing designed to penetrate hardened targets before the explosive detonates)
S: (n) pipe bomb (a small homemade bomb usually contained in a metal pipe)
S: (n) turkey, bomb, dud (an event that fails badly or is totally ineffectual) "the first experiment was a real turkey"; "the meeting was a dud as far as new business was concerned"