blood
1blood
noun, often attributive \ˈbləd\Definition of BLOOD
Examples of BLOOD
- The accident victim has already lost a lot of blood.
- the blood in your veins
Origin of BLOOD
Related to BLOOD
Other Anatomy Terms
2blood
transitive verbDefinition of BLOOD
First Known Use of BLOOD
blood
noun , often attrib \ˈbləd\ (Medical Dictionary)Medical Definition of BLOOD
blood
noun (Concise Encyclopedia)Circulatory fluid (see circulation) in multicellular animals. In many species it also carries hormones and disease-fighting substances. Blood picks up oxygen from the lungs and nutrients from the gastrointestinal tract and carries them to cells throughout the body for metabolism. It picks up carbon dioxide and other wastes from those cells and transports them to the lungs and excretory organs. Blood composition varies among species. Mammalian blood consists of plasma, red and white cells (erythrocytes and leukocytes), and platelets (thrombocytes). Blood disorders include polycythemia (abnormal increase in the number of circulating red blood cells), anemia, leukemia, and hemophilia. See also ABO blood-group system; blood analysis; blood bank; blood pressure; blood transfusion; blood typing; Rh blood-group system.
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