Definition of "Blood" :

noun: temperament or disposition

"A person of hot blood."

noun: the fluid (red in vertebrates) that is pumped through the body by the heart and contains plasma, blood cells, and platelets

"Blood carries oxygen and nutrients to the tissues and carries away waste products."

noun: people viewed as members of a group

"We need more young blood in this organization."

noun: the descendants of one individual

noun: a dissolute man in fashionable society

verb: smear with blood, as in a hunting initiation rite, where the face of a person is smeared with the blood of the kill