A heterogeneous taxon, a taxon that contains a great variety of individuals or sub-taxa; usually this implies that the taxon is an artificial grouping
Genetic heterogeneity, multiple origins causing the same disorder in different individuals.
Allelic heterogeneity, different mutations at the same locus causing the same disorder.
Chemistryedit
A heterogeneous reaction, a reaction in chemical kinetics that takes place at the interface of two or more phases, i.e. between a solid and a gas, a liquid and a gas, or a solid and a liquid
A heterogeneous catalysis, one in which the catalyst is in a different phase from the substrate
Ecologyedit
Heterogeneity in landscape ecology, the measure of how different parts of a landscape are from one another.
Computer scienceedit
Heterogeneous computing, electronic systems that utilize a variety of different types of computational units
Semantic heterogeneity, where there are differences in meaning and interpretation across data sources and datasets