What does coagulability mean?
Coagulability is a noun referring to the capacity of a liquid — most often blood — to coagulate, that is, to change from a fluid into a solid or semisolid clot. In medicine, a person's blood coagulability is a critical parameter: too little means wounds may bleed dangerously for long periods, as in hemophilia, while too much raises the risk of thrombosis, heart attack, or stroke. Drugs such as heparin and warfarin work precisely by reducing coagulability, which is why patients on them require regular monitoring. Though used mainly in clinical and laboratory contexts, the term can apply to any fluid whose thickening matters, from industrial resins to food products such as milk during cheese-making. Formal and technical in register, it rarely appears in casual speech, where simpler phrases like 'clotting' are preferred.
nounThe quality or degree to which a liquid, especially blood, is capable of coagulating or clotting. It is chiefly a technical term in medicine and physiology describing the tendency of a fluid to form a clot.
- The degree to which blood or another bodily fluid is capable of clotting (medical/physiological).
- More generally, the property of any liquid being able to thicken into a semi-solid mass.
"The patient's impaired coagulability raised concerns about excessive bleeding during surgery."
"Anticoagulant therapy deliberately lowers the coagulability of the blood."
"The chemist measured the coagulability of the latex under different temperatures."
Rarely pluralized; the term is normally used as an uncountable mass noun referring to the general property.
"Different samples showed varying coagulabilities in the assay."
Your blood's coagulability is why a paper cut stops bleeding in minutes — and why hemophilia makes even tiny wounds dangerous.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of coagulability
Coagulability derives from 'coagulate,' which traces back through Latin coagulare ('to curdle') and coagulum ('that which causes curdling'), ultimately related to cogere, meaning 'to drive together.' The suffix '-ability' forms nouns denoting capacity, so the word literally expresses the quality of being able to clot. It entered English usage alongside other Latinate scientific vocabulary, becoming established in nineteenth-century medical and physiological literature.
Related word forms
How coagulability is actually used
A formal, technical term found almost exclusively in medical, scientific, and laboratory writing; rare in everyday conversation. It typically appears in discussions of bleeding disorders, anticoagulant drugs, and diagnostic tests.
Easily confused with coagulability
Coagulability is the capacity or tendency of a fluid to clot, whereas coagulation is the actual process by which it clots.