1. the process of mixing or blending different breeds, types, or elements, especially of animals or plants
Usage: technical/biological context
2. the act or result of making something mixed or impure; degradation through mixing
Usage: figurative or dated usage

Examples

• The mongrelization of dog breeds has produced many popular mixed-breed varieties.
• Agricultural scientists studied the mongrelization of crop species to improve yield.
• The mongrelization of architectural styles in the city reflected its diverse cultural influences.
• Some breeders oppose mongrelization, preferring to maintain pure bloodlines.
• The mongrelization of musical genres created entirely new forms of expression.