- 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(also nuclear fusion) [uncountable] (physics) the act or process of combining the nucleus (= central parts) of atoms to form a heavier nucleus, with energy being released compare fission
- 3[uncountable] music that is a mixture of different styles, especially jazz and rock
- 4[uncountable] cooking that is a mixture of different styles French–Thai fusion
Check pronunciation: fusion