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entity go
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)

physical entity go
an entity that has physical existence

thing go
a separate and self-contained entity

unit, building block go
a single undivided natural thing occurring in the composition of something else

molecule go
(physics and chemistry) the simplest structural unit of an element or compound

macromolecule, supermolecule go
any very large complex molecule

protein go
any of a large group of nitrogenous organic compounds that are essential constituents of living cells

plasma protein go
any of the proteins in blood plasma

coagulation factor, clotting factor
any of the factors in the blood whose actions are essential for blood coagulation

noun.substance

12 Subcategories

fibrinogen, factor I go
a protein present in blood plasma
prothrombin, factor II go
a protein in blood plasma that is the inactive precursor of thrombin
thromboplastin, thrombokinase, factor III go
an enzyme liberated from blood platelets that converts prothrombin into thrombin as blood starts to clot
calcium ion, factor IV go
ion of calcium
proaccelerin, prothrombin accelerator, accelerator factor, factor V go
a coagulation factor
proconvertin, cothromboplastin, stable factor, factor VII go
a coagulation factor formed in the kidney under the influence of vitamin K
antihemophilic factor, antihaemophilic factor, antihemophilic globulin, antihaemophilic globulin, factor VIII, Hemofil go
a coagulation factor (trade name Hemofil) whose absence is associated with hemophilia A
Christmas factor, factor IX go
coagulation factor whose absence is associated with hemophilia B
prothrombinase, factor X go
coagulation factor that is converted to an enzyme that converts prothrombin to thrombin in a reaction that depends on calcium ions and other coagulation factors
plasma thromboplastin antecedent, factor XI go
coagulation factor whose deficiency results in a hemorrhagic tendency
Hageman factor, factor XII go
coagulation factor whose deficiency results in prolongation of clotting time of venous blood
fibrinase, factor XIII go
in the clotting of blood thrombin catalyzes factor XIII into its active form (fibrinase) which causes fibrin to form a stable clot