The quality or state of being diverse in character or content. The heterogeneity of the student body is one of the university's strengths.
The presence of different elements or types within a group or system. The heterogeneity of the ecosystem allows for a wide variety of species to thrive.
The condition of a material, substance, or mixture comprising parts of different kinds, resulting in a lack of uniform composition or structure. Microscopic analysis revealed significant heterogeneity in the alloy's crystalline structure.