Look up coagulation in Wiktionary, the free dictionary.

Coagulation is the process by which blood forms clots.

Coagulation may also refer to:

• Coagulation (water treatment), in colloid chemistry, a process in which dispersed colloidal particles agglomerate
• Coagulation (milk), the coagulation of milk into curd by rennet or acid
• Coagulation, the loss of solubility as a result of denaturation
• Blood Gulch, a multiplayer map called "Coagulation" in the video game Halo 2
• Mixing of two particles in an aerosol to form a third particle
• Clumping of dust particles in a protoplanetary disk, a possible early stage of planet formation