fu·sion
ˈfyo͞oZHən
noun
1. the process or result of joining two or more things together to form a single entity.
"a fusion of an idea from anthropology and an idea from psychology"
synonyms: blend, blending, combination, amalgamation, joining, union, marrying, bonding, merging, melding, mingling, integration, intermixture, intermingling, synthesis; coalescence