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|Noun||1.||family relationship - (anthropology) relatedness or connection by blood or marriage or adoption|
relation - an abstraction belonging to or characteristic of two entities or parts together
anthropology - the social science that studies the origins and social relationships of human beings
phylogenetic relation, affinity - (biology) state of relationship between organisms or groups of organisms resulting in resemblance in structure or structural parts; "in anatomical structure prehistoric man shows close affinity with modern humans"
filiation, line of descent, lineage, descent - the kinship relation between an individual and the individual's progenitors
affinity - (anthropology) kinship by marriage or adoption; not a blood relationship
brotherhood - the kinship relation between a male offspring and the siblings