Coagulate/kəʊˈæɡjuleɪt/ Definition 1 of 2Pro Tip 1/3Culinary Reference Used when describing food preparation processes where a change in texture is observed. Heat the sauce until it starts to coagulate. Pro Tip 2/3Physical Change Implies a change in the state of a material, usually irreversible through simple means. The cold temperature caused the coconut milk to coagulate. Pro Tip 3/3Natural Processes Occurs in nature, often as part of biological functions or environmental interactions. The sap began to coagulate as it oozed from the tree.