The act of donating one's blood for use in transfusion.

plural of blood choke

plural of blood quantum

plural of blood rain

plural of blood quantum

(US) The fraction of a person's ancestors, out of their total ancestors, who are documented as full-blooded Native Americans. For instance, a person who has one parent who is a full-blood Native American and one who has no Native ancestry has a blood quantum of 1/2.

Synonym of new blood (“newcomers to a project or organization”)

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

(hematology, cytology, immunology) A type of blood cell that is involved with an immune response, or part of the immune system.

(hematology, cytology) A type of cell in the blood of vertebrates that contains hemoglobin and transports oxygen from the lungs to the tissues; an erythrocyte.