To melt; two or more materials joining at a molecular level. "Fusion" may also refer to the combination or blending of other things, such as styles or subjects. An example of this in the classical orders is the composite order.(pr. FYOOZ, FYOO-zhən)Also see adsorption, adhesives, alloy, encaustic, fire, flux, Fluxus, glass, glaze, kiln, metal, pastiche, polymer clay, soldering, temperature, and welding.