in someone's blood

in someone's blood (not comparable)

1. As an inborn trait, especially one that one shares with other members of their family.

   Music is in my blood.

   to run in someone's blood

• run in the family

• “in someone's blood”, in Cambridge English Dictionary, Cambridge, Cambridgeshire: Cambridge University Press, 1999–present.
• “in someone's blood” in Longman Dictionary of Contemporary English, Longman.
• “in ones blood”, in Collins English Dictionary.