heterogeneity

/ˌhɛtərədʒəˈniːəti/
noun
  1. The quality or state of being made up of different or varied parts or elements.
    • The team's heterogeneity in skills and backgrounds led to more creative solutions.
    • The heterogeneity of the city's population makes it a vibrant place to live.
    • Scientists study the genetic heterogeneity within a species to understand evolution.