iki taraflı soy

listen to the pronunciation of iki taraflı soy
التركية - الإنجليزية
(Pisikoloji, Ruhbilim) bilateral descent
descent traced from an ancestor, regardless of sex and side of the family of the intervening generations

Only by bilateral descent is a boy related to his mother's grandfather.

descent traced from all biological descendants, regardless of sex and side of the family
line of descent traced through both the maternal and paternal sides of the family