Heterogeneity

Part of speech: noun

Definitions

1. The quality or state of being composed of dissimilar or diverse elements, types, or components that differ in nature, origin, or character
2. The state of comprising fundamentally different or varied elements that lack uniformity in their characteristics or composition
3. The property of being made up of disparate components or constituent parts that are not homogeneous or alike in nature
4. The state of comprising elements that are fundamentally different in nature, composition, or origin, lacking uniformity across constituent parts
5. A condition characterized by the presence of diverse, unlike, or variable components that are not identical or homogeneous in their properties or characteristics

Etymology: Heterogeneity is built from two Greek elements: "heteros," meaning "other" or "different," and "genos," meaning "kind" or "race," the same root that gives English "genus" and "gender." Literally, then, it means something like "otherness of kind." The Greek adjective "heterogenes" ("of a different kind") was used in classical and later Greek writing, and the abstract noun came into English from Latin-based scientific and philosophical writing, with the adjective "heterogeneous" appearing in English in the early 1600s. The noun "heterogeneity" is a later formation, first recorded in English around the 1600s and widely used from the 19th century onward. Its meaning has broadened over time: it began as a philosophical and logical idea about things being of different kinds, and then spread into physics, chemistry, statistics, and social science, where it describes mixtures, populations, or data whose parts differ in composition.

Synonyms: diversity, variety, multiplicity, disparity, mixedness

Antonyms: homogeneity, uniformity, similarity, consistency, sameness