Coagulatio

Part of speech: noun

Definitions

1. The process by which a liquid, especially blood, thickens and forms clots to prevent excessive bleeding or to solidify a substance for various biological or chemical purposes
2. The transformation of a liquid into a thickened or semi-solid state through clot formation, often involving blood or other fluids congealing to cease flow or enable structural stability
3. A physiological or chemical change where a fluid becomes dense and clotted, typically referring to blood clotting or the solidification of a liquid into a gel-like consistency for protective or functional roles

Etymology: Its base is "coagulum," the Latin name for rennet, the substance from a calf's stomach used to curdle milk into cheese. The physical process was named after the cook's tool, not the other way round. Rennet's name comes from "cogere," meaning "to drive together," built from "co-" (together) and "agere" (to drive or set in motion). The underlying image is of parts forced into one mass, whether milk pressed into curds or fluid pulled into a solid clot. "Coagulatio" is the action noun formed from "coagulare," "to curdle," so it names the process itself. The same sense of separate things gathering into a single solid runs through the term whether it describes milk, blood, or a gel.

Synonyms: coagulation, clotting, clumping

Antonyms: dissolution, liquefaction