Meaning of “blood” - Learner’s Dictionary

blood

noun [ U ] us uk /blʌd/
Extra Examples
The level of iron in her blood was too low.Traces of blood found on Walker's clothing matched the victim's blood type.As soon as Wendy saw the blood, she became hysterical.Your heart pumps blood around your body.His shirt was spattered with blood.
RED LIQUID

A2 the red liquid that flows around your body:

a blood test/sample
FAMILY ORIGIN

the family or place that you come from:

There's 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.

(Definition of “blood” from the Cambridge Learner’s Dictionary © Cambridge University Press)