The term for a large, extended family structure is "clan" or "extended family." This structure includes not only immediate family members, such as parents and children, but also relatives like grandparents, aunts, uncles, and cousins, often living in close proximity or maintaining strong cooperative ties. Extended family systems can provide emotional support, shared childcare responsibilities, and pooled resources, contributing to stronger social bonds. In many cultures, clans play significant roles in identity, traditions, and responsibilities, often influencing customs, inheritance, and community involvement, showcasing the importance of family networks in societal structures.