01 n. The act or operation of melting or rendering fluid by heat; the act of melting together; as, the fusion of metals.
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1.
The act or operation of melting or rendering fluid by heat; the act of melting together; as, the fusion of metals.
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2.
The state of being melted or dissolved by heat; a state of fluidity or flowing in consequence of heat; as, metals in fusion.
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3.
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.
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4.
The union, or binding together, of adjacent parts or tissues.(Biol.)
Phrases & compounds
Watery fusion —
the melting of certain crystals by heat in their own water of crystallization.