often attributive
1
: the act or process of liquefying or rendering plastic by heat
2
: a union by or as if by melting: such as
a
: a merging of diverse, distinct, or separate elements into a unified whole
Opera is a fusion of several arts.
b
: a political partnership : coalition
… a fusion of Democrats and independent Republicans …—New York Times
c
: popular music combining different styles (such as jazz and rock)
d
: food prepared using techniques and ingredients of two or more ethnic or regional cuisines
a restaurant that specializes in Japanese-Peruvian fusion
called also fusion cuisine
3
: the union of atomic nuclei to form heavier nuclei resulting in the release of enormous quantities of energy when certain light elements unite
nuclear fusion
Cite this Entry
“Fusion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fusion. Accessed 6 Aug. 2026.
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