|substances remaining from the excretory processes that cannot be used by the organism|
|any of various colorless cells of the immune system that circulate mainly in the blood and lymph|
fibrinogen fi·brin·o·gen (fī-brĭn'ə-jən)
A protein in the blood plasma that is essential for the coagulation of blood and is converted to fibrin by thrombin and ionized calcium. Also called factor I.
|fibrinogen (fī-brĭn'ə-jən) Pronunciation Key
A protein in the blood plasma that is essential for the coagulation of blood. It is converted to fibrin by the action of thrombin in the presence of calcium ions.