synergy

noun4

1. •
   The cooperation of two or more nerves, muscles, organs, etc.
2. •
   The combined action of two or more drugs where the effects are stronger than their mere sum.
3. •
   (figurative) Benefits resulting from combining different groups, people, objects or processes.

   • Others argued that the notion of a targeted war on a particular disease inevitably distracted from natural synergies with other areas of research. — 2010
4. •
   A synonym of binding energy.