English definition of “blood”
/blʌd/ noun [U]
RED LIQUID › the red liquid that flows around your body: a blood test/sample
FAMILY ORIGIN › the family or place that you come from: I've got some Spanish blood in me.
be in your blood › If something is in your blood, you and other people in your family are interested in it or good at it: Sailing is in my blood. → See also your own flesh and blood