fusion

Concise Oxford English Dictionary © 2008 Oxford University Press:
fusion/ˈfjuːʒn/

▶noun

• 1 the process or result of fusing.

• 2 a reaction in which light atomic nuclei fuse to form a heavier nucleus, releasing much energy.

• 3 popular music that is a mixture of different styles, especially jazz and rock.

• 4 [as modifier] referring to food or cooking which incorporates elements of both eastern and western cuisine.

– derivatives
fusional adjective,
fusionism noun,
fusionist noun.

– origin C16: from L. fusio(n-), from fundere ‘pour, melt’.