Coagulate \Co*ag"u*late\, 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]