Definition that contains atomic bomb
- hiroshima a port city on the southwestern coast of Honshu in Japan; on August 6, 1945 Hiroshima was almost completely destroyed by the first atomic bomb dropped on a populated area
- truman elected vice president in Roosevelt's 4th term; became 33rd President of the United States on Roosevelt's death in 1945 and was elected President in 1948; authorized the use of atomic bombs against Japan (1884-1972)
- nagasaki a city in southern Japan on Kyushu; a leading port and shipbuilding center; on August 9, 1945 Nagasaki became the second populated area to receive an atomic bomb
- groves United States general who served as military director of the atomic bomb project (1896-1970)
- oppenheimer United States physicist who directed the project at Los Alamos that developed the first atomic bomb (1904-1967)
- robert oppenheimer United States physicist who directed the project at Los Alamos that developed the first atomic bomb (1904-1967)
- fallout shelter a shelter to protect occupants from the fallout from an atomic bomb
- denature add nonfissionable material to (fissionable material) so as to make unsuitable for use in an atomic bomb
- los alamos a town in north central New Mexico; in 1942 it was chosen as a nuclear research site where the first atomic bombs were produced
- harry s truman elected vice president in Roosevelt's 4th term; became 33rd President of the United States on Roosevelt's death in 1945 and was elected President in 1948; authorized the use of atomic bombs against Japan (1884-1972)