Amalgam :  (noun)
1: an alloy of mercury with another metal (usually silver) used by dentists to fill cavities in teeth; except for iron and platinum all metals dissolve in mercury and chemists refer to the resulting mercury mixtures as amalgams [syn: dental amalgam]
2: a combination or blend of diverse things; "his theory is an amalgam of earlier ideas"

admixture, alloy, alloyage, amalgamation, blend, combination, combo, commixture, composite, composition, compound, concoction, confection, ensemble, fusion, immixture, interfusion, intermixture, magma, mix, mixture, paste,