cagulation, blood definition
Noun. 1. blood coagulation-a process in which liquid blood is changed into a semisolid mass (a blood clot). blood clotting. clotting, coagulation, curdling-the process of forming semisolid lumps in a liquid.1  Facebook.oun. 1. blood coagulation-a process in which liquid blood is changed into a semisolid mass (a blood clot). blood clotting. clotting, coagulation, curdling-the process of forming semisolid lumps in a liquid.