Definition of fusion noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//ˈfjuːʒn//
    ; NAmE NAmE//ˈfjuːʒn//
    Energy and physical forces, Styles of music
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  1. 1[uncountable, singular] the process or result of joining two or more things together to form one the fusion of copper and zinc to produce brass The movie displayed a perfect fusion of image and sound.
  2. 2 (also nuclear fusion) [uncountable] (physics) the act or process of combining the nuclei (= central parts) of atoms to form a heavier nucleus, with energy being released compare fission See related entries: Energy and physical forces
  3. 3[uncountable] music that is a mixture of different styles, especially jazz and rock See related entries: Styles of music
  4. 4[uncountable] cooking that is a mixture of different styles French–Thai fusion
  5. Word Originmid 16th cent.: from Latin fusio(n-), from fundere ‘pour, melt’.
See the Oxford Advanced American Dictionary entry: fusion