What does "fusion" mean?

Fusion: The state of being melted or dissolved by heat; a state of fluidity or flowing in consequence of heat; as, metals in fusion.

Additional senses

  1. 2.The union or blending together of things, as, melted together. The universal fusion of races, languages, and customs . . . had produced a corresponding fusion of creeds. C. Kingsley. Watery fusion (Chem.) the melting of certain crystals by heat in their own water of crystallization.
  2. 3.(Biol.) The union, or binding together, of adjacent parts or tissues.

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