*coagulat*

a. [ L. coagulatus, p. p. of coagulare to coagulate, fr. coagulum means of coagulation, fr. cogere, coactum, to drive together, coagulate. See Cogent. ] Coagulated. [ Obs. ] Shak. [ 1913 Webster ]

v. t. [ imp. & p. p. Coagulated p. pr. & vb. n. Coagulating ] To cause (a liquid) to change into a curdlike or semisolid state, not by evaporation but by some kind of chemical reaction; to curdle; as, rennet coagulates milk; heat coagulates the white of an egg. [ 1913 Webster ]

v. i. To undergo coagulation. Boyle.

Syn. -- To thicken; concrete; curdle; clot; congeal. [ 1913 Webster ]

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 ]

a. Having the power to cause coagulation; as, a coagulative agent. Boyle. [ 1913 Webster ]

n. That which causes coagulation. Hixley. [ 1913 Webster ]