noun, often attributive
fu·​sion | \ ˈfyü-zhᵊn How to pronounce fusion (audio) \

Definition of fusion

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 RepublicansNew 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 Indian-Chinese 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

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Examples of fusion in a Sentence

a fusion of different methods a fusion of musical styles The show is a fusion of news and entertainment. The fusion of different cultural influences is evident in her sculpture.
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Recent Examples on the Web Representing salsa, bachata, Venezuelan folk styles and Cuban son, the artists in this year’s Tropical category showcae the diversity and deserved popularity of those timeless music styles and their many modern fusions. Judy Cantor-navas, Billboard, "Who Are the 2020 Grammys Tropical Album Nominees?," 17 Jan. 2020 Fresh Alley Kitchen & Tea Bar The Asian fusion restaurant serves a mix of pho, bbq cold noodles, popcorn chicken and wings, cold fruit teas and boba. Priscilla Totiyapungprasert, azcentral, "Tacos and sandwiches: 32 restaurants and bars that opened in December 2019 in metro Phoenix," 2 Jan. 2020 Gonzales, whose parents are from Mexico, grew up in Oldham County and now owns Foko, a Mexican-Southern style fusion restaurant in Logan Street Market, 1001 Logan St. in Shelby Park, with chef Paco Garcia. Savannah Eadens, The Courier-Journal, "'It is a refuge': Louisville's salsa dancing scene connects Latin Americans to their roots," 4 Dec. 2019 For lunch, Cameron heads to Flip Sigi, a Filipino fusion restaurant in Greenwich Village. Chelsey Sanchez, Harper's BAZAAR, "This Is Exactly What Tyler Cameron Eats in One Day," 3 Dec. 2019 Barbershops and historic delis shuttered to make way for fusion restaurants and third-wave coffeehouses. Tessa Love, Longreads, "California Burning," 8 Nov. 2019 Before frosé was a glimmer in anyone’s eye; before fusion restaurants were as ubiquitous as fondue; heck, before Denver restaurant king Frank Bonanno was even born and when Union Station was cool the first time around, there were these restaurants. Josie Sexton, The Know, "Colorado’s 13 most iconic, historic restaurants and what to order when you’re there," 23 Oct. 2019 Taking up home in the former Cane Rosso spot, the 200-seat Candente (100 indoor, 100 patio) is fusion restaurant that combines Pit Room barbecue know-how with Tex-Mex dining traditions. Greg Morago, Houston Chronicle, "Wood-fired Tex-Mex restaurant Candente opens Sept. 16," 10 Sep. 2019 San Francisco Asian fusion restaurant Chubby Noodle will close its present North Beach location on Grant Avenue and move to a new, albeit familiar, bar space around the corner, where Chubby Noodle began as a pop-up nearly a decade ago. Justin Phillips, SFChronicle.com, "North Beach’s Chubby Noodle is moving," 4 Sep. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'fusion.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of fusion

14th century, in the meaning defined at sense 1

History and Etymology for fusion

borrowed from Medieval Latin fūsiōn-, fūsiō "process of pouring, casting of molten metal," going back to Latin, "process of pouring, effusion," from fud-, variant stem of fundere "to pour, shed, cast (liquid metal)" (Medieval Latin also, "to melt down, make liquid") + -tiōn-, -tiō, suffix of verbal action — more at found entry 5

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Learn More about fusion

Time Traveler for fusion

Time Traveler

The first known use of fusion was in the 14th century

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Statistics for fusion

Last Updated

12 Feb 2020

Cite this Entry

“Fusion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fusions. Accessed 20 Feb. 2020.

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More Definitions for fusion


How to pronounce fusion (audio)

English Language Learners Definition of fusion

: a combination or mixture of things
physics : a process in which the nuclei of atoms are joined
: a type of popular music that combines different styles (such as jazz and rock)


fu·​sion | \ ˈfyü-zhən How to pronounce fusion (audio) \

Kids Definition of fusion

1 : an act of fusing or melting together
2 : union by or as if by melting
3 : union of atomic nuclei to form heavier nuclei resulting in the release of enormous quantities of energy


noun, often attributive
fu·​sion | \ ˈfyü-zhən How to pronounce fusion (audio) \

Medical Definition of fusion

1a : the act or process of liquefying or rendering plastic by heat
b : the liquid or plastic state induced by heat
2 : a union by or as if by melting together: as
a : a merging of diverse elements into a unified whole specifically : the blending of retinal images in binocular vision
b : a combination of ingredients achieved by heating and mixing together
(1) : a blend of sensations, perceptions, ideas, or attitudes such that the component elements can seldom be identified by introspective analysis
(2) : the perception of light from a source that is intermittent above a critical frequency as if the source were continuous

called also flicker fusion

— compare flicker
d : the surgical immobilization of a joint — see spinal fusion
3 : the union of atomic nuclei to form heavier nuclei resulting in the release of enormous quantities of energy when certain light elements unite

called also nuclear fusion

Other Words from fusion

fusional \ -​ᵊl How to pronounce fusional (audio) \ adjective

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