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blood clotting
(Encyclopedia) blood clotting, process by which the blood coagulates to form solid masses, or clots. In minor injuries, small oval bodies called platelets, or thrombocytes, tend to collect and form…blood feud
(Encyclopedia) blood feud: see vendetta.blood poisoning
(Encyclopedia) blood poisoning: see septicemia.blood pressure
(Encyclopedia) blood pressure, force exerted by the blood upon the walls of the arteries. The pressure in the arteries originates in the pumping action of the heart, and pressure waves can be felt at…blood substitute
(Encyclopedia) blood substitute, substance that mimics the function of blood. Blood substitutes typically concentrate only on reproducing the function of hemoglobin, the molecule that carries oxygen…blood test
(Encyclopedia) blood test, examination of blood routinely or as an aid in diagnosing a suspected disease. Tests may be performed on whole blood or on the plasma portion only. Blood typing identifies…blood type
(Encyclopedia) blood type: see blood groups.Rh factor
(Encyclopedia) Rh factor, protein substance present in the red blood cells of most people, capable of inducing intense antigenic reactions. The Rh, or rhesus, factor was discovered in 1940 by K.…apheresis
(Encyclopedia) apheresisapheresisəfĕrˈəsĭs [key], or hemapheresishemapheresishēˌməfĕrˈəsĭs [key], any procedure in which blood is drawn from a donor or patient and a component (platelets, plasma, or…blue baby
(Encyclopedia) blue baby, infant born with a congenital heart defect that causes a bluish coloration of the skin as a result of cyanosis (deoxygenated blood). The color is most noticeable around the…Trending
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