inbreeding

/ˈɪnˌbriːdɪŋ/
noun
  1. The process of breeding or mating between closely related individuals, such as within the same family or small group, often leading to genetic problems.
    • The zoo avoided inbreeding by bringing in new animals from other facilities.
    • Farmers know that inbreeding can weaken a herd over time.
    • Inbreeding among royal families in history sometimes caused health issues for their children.
Antonyms
What does "inbreeding" mean? | whatsthatwordmean | whatsthatwordmean