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Definition of Nuclear fusion
1. Noun. A nuclear reaction in which nuclei combine to form more massive nuclei with the simultaneous release of energy.
Exact synonyms: Fusion, Nuclear Fusion Reaction
Specialized synonyms: Cold Fusion, Thermonuclear Reaction
Generic synonyms: Nuclear Reaction
Specialized synonyms: Cold Fusion, Thermonuclear Reaction
Generic synonyms: Nuclear Reaction
Medical Definition of Nuclear fusion
1. Thermonuclear reaction in which the nuclei of an element of low atomic weight unite under extremely high temperature and pressure to form a nucleus of a heavier atom. (12 Dec 1998)