An airdropped bomb without any guidance system to control it after launch.

(meteorology) A large storm that evolves with little warning, usually as a result of a sudden drop in barometric pressure.

(meteorology) weather bomb

(historical) A kind of conventional high-explosive aerial bomb used by the United States against Japan during World War II.

A senton.

(military, weaponry) a type of theoretical radiological nuclear weapon that relies on an induced rapid change in the state of nuclear isomers to generate an intense gamma ray flash.

Synonym of thermonuclear weapon

present participle of bomb out

present participle of bomb around

(botany) Belonging to the now disused family Bombacaceae (now the much-reduced subfamily Bombacoideae in Malvaceae).