atomic bomb

noun
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) (Freq. 2)
Hypernyms: ↑nuclear weapon, ↑atomic weapon, ↑bomb
Hyponyms: ↑clean bomb, ↑dirty bomb, ↑neutron bomb
Part Meronyms: ↑plutonium trigger, ↑plutonium pit

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noun

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1. a bomb whose potency is derived from nuclear fission of atoms of fissionable material with the consequent conversion of part of their mass into energy.
2. a bomb whose explosive force comes from a chain reaction based on nuclear fission in U-235 or plutonium.
Also, atom bomb. Also called A-bomb, fission bomb.
[1910-15]

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atom bomb or atomic bomb noun
A nuclear device in which quantities of uranium-235 or plutonium are forced to become critical with the result that their nuclei are bombarded by neutrons and split with explosive transformation of part of their mass into energy
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Main Entry:atom

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atomic bomb variant UK US
Main entry: atom bomb

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atomic bomb,
a bomb in which the splitting of atomic nuclei results in an explosion of tremendous force and heat, accompanied by a blinding light. The destructive force of an atomic bomb is due to nearly instantaneous and uncontrolled successive fissions of uranium or plutonium atoms in a chain reaction, each fission releasing tremendous energy and also neutrons that produce the succeeding fission. Also, A-bomb, atom bomb. See also fission bomb. (Cf.fission bomb)

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noun, pl ⋯ bombs [count]
: a bomb that produces an extremely powerful explosion when atoms are split apart — called also A-bomb, atom bomb

Useful english dictionary. 2012.

Look at other dictionaries:

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  • atomic bomb — atomic bombs N COUNT (The form atom bomb is also used, mainly in British English.) An atomic bomb or an atom bomb is a bomb that causes an explosion by a sudden release of energy that results from splitting atoms …   English dictionary

  • atomic bomb — ☆ atomic bomb n. an extremely destructive type of bomb, the power of which results from the immense quantity of energy suddenly released when a very rapid chain reaction of nuclear fission is set off by neutron bombardment in the atoms of a… …   English World dictionary

  • atomic bomb — 1. a bomb whose potency is derived from nuclear fission of atoms of fissionable material with the consequent conversion of part of their mass into energy. 2. a bomb whose explosive force comes from a chain reaction based on nuclear fission in U… …   Universalium

  • Atomic bomb —    The atomic bomb was a weapon made using enriched uranium, which on detonation caused a chain nuclear reaction involving the fission of atomic particles. Development of the atomic bomb in the United States began after Albert Einstein wrote to… …   Historical Dictionary of the Roosevelt–Truman Era

  • atomic bomb — atom bomb UK / US or atomic bomb UK / US noun [countable] Word forms atom bomb : singular atom bomb plural atom bombs Word forms atomic bomb : singular atomic bomb plural atomic bombs a bomb that causes a very large nuclear explosion from the… …   English dictionary

  • Atomic bomb — Atom bomb At om bomb , Atomic bomb A*tom ic bomb . a bomb of great power in which the explosive energy is derived from the nuclear fission of a fissionable material, such as plutonium or uranium 235. It is a type of nuclear weapon. The strength… …   The Collaborative International Dictionary of English

  • atomic bomb — Nuclear weapon Nu cle*ar wea pon, n. A weapon of great explosive power, such as an {atomic bomb} or a {hydrogen bomb}, which depends for most of its explosive power on the release of energy from within atomic nuclei by a nuclear reaction. A… …   The Collaborative International Dictionary of English

  • atomic bomb — atominė bomba statusas T sritis apsauga nuo naikinimo priemonių apibrėžtis Aviacinė bomba su atominiu užtaisu, branduolinio šaudmens rūšis. Į taikinį neša naikintuvai, taktiniai naikintuvai, bombonešiai. Pagrindinės atominės bombos dalys:… …   Apsaugos nuo naikinimo priemonių enciklopedinis žodynas

  • atomic bomb — atominė bomba statusas T sritis fizika atitikmenys: angl. atomic bomb vok. Atombombe, f rus. атомная бомба, f pranc. bombe atomique, f …   Fizikos terminų žodynas


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