Fibrin

(fi'brin.) [From L. fibra, fibre.] (Chem.) A substance found in solution in blood. When obtained clear of the other constituents, it forms long elastic filaments. More than half of dried F. consists of carbon, the other components being oxygen, nitrogen, and hydrogen, with a little sulphur and a trace of phosphorus: the proportions of these matters being nearly the same as in albumen. With the exception of phosphorus, the F. of flesh has the same constituents, but in different proportions. When blood is drawn from the living animal, theF. begins to coagulate. [s. 362]