heterogeneity
noun
[ ˌhɛt(ə)rə(ʊ)dʒɪˈniːɪti ]
• the quality or state of being diverse in character or content.
• "the genetic heterogeneity of human populations"
Origin:
mid 17th century: from medieval Latin heterogeneitas, from heterogeneus (see heterogeneous) + -ity.
