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| fis·sion [ físh'n ] |
noun |
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| Definition: |
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1. nuclear physics splitting of atomic nucleus releasing energy: the spontaneous or induced splitting of an atomic nucleus into smaller parts, usually accompanied by a significant release of energy
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2. breaking up: the act or process of separating into parts
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3. genetics division of an organism: the division of a single-celled organism into two equal parts, each part growing into a complete organism
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| [Early 17th century. < Latin fission-< fiss- (see fissi-)] |
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