Definition of outbreed in English:



  • 1with object Reproduce more quickly or more prolifically than.

    • ‘a species that matured quickly might outbreed all other varieties’
  • 2no object Breed from parents not closely related.

    ‘domestic cats routinely outbreed with their wild cousins’
    • ‘many specific genetic factors are known that regulate the degree of outbreeding’
    • ‘In addition, the ratio of the metapopulation levels of genetic diversity in inbreeding vs. outbreeding species can also be heavily influenced by the structure of the populations.’
    • ‘The first hypothesis predicts that outbreeding species should possess more genetic variation within a population and that inbreeding species show less variation within and more between populations.’
    • ‘The fitness consequences of inbreeding and outbreeding have intrigued biologists for a long time.’
    • ‘I used to suppose that finding the right balance between inbreeding and outbreeding, minimising the costs of both, is best achieved by careful mate choice.’
    • ‘Note that all related outbred progeny are related to these grandparents through their common sire.’



/ˌoutˈbrēd/ /ˌaʊtˈbrid/