NCIt definition : A unit of measurement for blood coagulation inhibitor activity, expressed in the amount
of an inhibitor neutralizing 50% of a coagulant during the incubation period per unit
of volume equal to one milliliter.;
Alternative definition : CDISC: A unit of measurement for blood coagulation inhibitor activity, expressed in
the amount of an inhibitor neutralizing 50% of a coagulant during the incubation period.;