coagulation

This term describes the transition of a fluid into a thickened, gel-like, or solid mass. In medical contexts, it specifically refers to the clotting of blood to prevent hemorrhage, carrying a connotation of biological protection and stability.

In industrial or chemical contexts, it refers to the intentional clumping of particles to purify a liquid. This process is often viewed as a mechanical or chemical filtration step rather than a biological response.