atomic bomb

noun
Updated on: 15 Nov 2017

Definition of atomic bomb

1 : a bomb whose violent explosive power is due to the sudden release of energy resulting from the splitting of nuclei of a heavy chemical element (such as plutonium or uranium) by neutrons in a very rapid chain reaction called also atom bomb
2 : a nuclear weapon (such as a hydrogen bomb)

Recent Examples of atomic bomb from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'atomic bomb.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of atomic bomb

1914


ATOMIC BOMB Defined for English Language Learners

atomic bomb

noun

Definition of atomic bomb for English Language Learners

  • : a bomb that produces an extremely powerful explosion when atoms are split apart


ATOMIC BOMB Defined for Kids

atomic bomb

noun

Definition of atomic bomb for Students

: a bomb whose great power is due to the sudden release of the energy in the nuclei of atoms


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