amalgamation

noun4

1. •
   The process of amalgamating; a mixture, merger or consolidation.
2. •
   The result of amalgamating; a mixture or alloy.
3. •
   The production of an alloy of mercury and another metal, especially used in antiquity to extract gold and silver from ores.
4. •
   (no longer used) The intermarriage and interbreeding of different ethnicities or races.