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Definition of Patrilineal
1. Adjective. Based on or tracing descent through the male line. "A patrilineal society" 
Definition of Patrilineal
1. [adj]
Medical Definition of Patrilineal
1. Related to descent through the male line; inheritance of the Y chromosome is exclusively patrilineal. Origin: L. Pater, father, + linea, line (05 Mar 2000)



