Crosssibling

Crosssibling refers to a relationship where two individuals share one biological parent but not the other. This is distinct from full siblings, who share both biological parents, and half-siblings, who share only one biological parent. The term "crosssibling" is sometimes used in academic or genetic contexts to distinguish this specific type of familial connection.

In genetics, crosssiblings will share approximately 25% of their DNA on average, inherited from their common parent. The other 50% of their DNA will be unique to each individual, inherited from their non-shared parents. This genetic similarity is less than that of full siblings, who share about 50% of their DNA.

The social dynamics and experiences of crosssiblings can vary widely depending on factors such as how they were raised, their proximity to each other, and their relationship with their respective parents. They may grow up in different households or have limited contact, or they might be actively involved in each other's lives. Despite sharing only one parent, crosssiblings can form strong bonds and consider themselves as close as full siblings. The term emphasizes the biological connection while acknowledging the potential for diverse familial relationships.