homogeneity

/ˌhoʊmədʒəˈniəti/
noun
  1. The quality or state of being all the same or of a uniform nature throughout.
    • The homogeneity of the paint ensures an even coat on the wall.
    • The neighborhood's cultural homogeneity made it feel very close-knit.
    • Scientists test the homogeneity of a sample to make sure it is well mixed.