conglomeration
noun /kənˌɡlɒməˈreɪʃn/
  /kənˌɡlɑːməˈreɪʃn/
- [countable, usually singular] a conglomeration (of something) (formal) a mixture of different things that are found all together- a conglomeration of buildings of different sizes and styles
 
- [uncountable] the process of forming a conglomerate; the state of being a conglomerate- We are in an age of massive media conglomeration.