CLOTTING TIME • DICTIONARY ONE.COM • Definition of Clotting time

... to the present time by clinicians is the RATE OF COAGULATION OF THE BLOOD, for which comparative results may be obtained by Wright's handy apparatus, the "Coagulometer." In certain conditions, particularly in acute exanthemata, and in the various forms of the haemorrhagic diathesis, the clotting time is distinctly increased, or indeed clotting may remain in abeyance. Occasionally a distinct acceleration in the clotting, compared with the normal, may be observed. Wright has further ascertained in his excellent researches, that the clotting time can be influenced by drugs: calcium ...

— Histology of the Blood - Normal and Pathological • Paul Ehrlich