'Coagulation' definitions:

Definition of 'coagulation'

noun

The process of forming semisolid lumps in a liquid [syn: curdling, clotting, coagulation]

From: GCIDE

Coagulation \Co*ag`u*la"tion\, n. [L. coagulatio.]
1. The change from a liquid to a thickened, curdlike, insoluble state, not by evaporation, but by some kind of chemical reaction; as, the spontaneous coagulation of freshly drawn blood; the coagulation of milk by rennet, or acid, and the coagulation of egg albumin by heat. Coagulation is generally the change of an albuminous body into an insoluble modification. [1913 Webster]
2. The substance or body formed by coagulation. [1913 Webster]