cog·na·tion /kɑgˈneʃən/
 同族,親族,血族關係


 Cog·na·tion n.
 1. Relationship by blood; descent from the same original; kindred.
    As by our cognation to the body of the first Adam.   --Jer. Taylor.
 2. Participation of the same nature.
    A like temper and cognation.   --Sir K. Digby.
 3. Law That tie of consanguinity which exists between persons descended from the same mother; -- used in distinction from agnation.

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 cognation
      n 1: line of descent traced through the maternal side of the
           family [syn: matrilineage, enation]
      2: related by blood [syn: consanguinity, blood kinship]
         [ant: affinity]