A Bomb

n. atomic bomb

A nuclear weapon derives its destructive force from nuclear reactions of fusion or fission. As a result, even a nuclear weapon with a small yield is significantly more powerful than the largest conventional explosives, and a single weapon is capable of destroying an entire city.In the history of warfare, two nuclear weapons have been detonated — both by the United States, during the closing days of World War II. The first event occurred on the morning of 6 August 1945, when the United States dropped a uranium gun-type device code-named "Little Boy" on the Japanese city of Hiroshima. The second event occurred three days later when the United States dropped a plutonium implosion-type device code-named "Fat Man" on the city of Nagasaki. These bombings resulted in the immediate deaths of around 120,000 people and even more over time because of injuries sustained and long-term radiation. The use of these weapons was and remains controversial. (See Atomic bombings of Hiroshima and Nagasaki for a full discussion).
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Noun
1. a nuclear weapon in which enormous energy is released by nuclear fission (splitting the nuclei of a heavy element like uranium 235 or plutonium 239)
(synonym) atom bomb, atomic bomb, fission bomb, plutonium bomb
(hypernym) nuclear weapon
(hyponym) clean bomb
(part-meronym) plutonium trigger, plutonium pit

Synonyms and related words:
H-bomb, atomic bomb, atomic warhead, clean bomb, cobalt bomb, dirty bomb, fusion bomb, hell bomb, hydrogen bomb, limited nuclear weapons, nuclear artillery, nuclear explosive, nuclear warhead, plutonium bomb, superbomb, tactical nuclear weapons, thermonuclear bomb, thermonuclear warhead,
  

a-bomb /'ei'bɔm/
danh từ bom nguyên tử
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