What is the meaning of Anticoagulant?

A substance that prevents coagulation, that stops blood from clotting.

That prevents coagulation, that stops blood from clotting.

anticoagulant, anticoagulating (that prevents coagulation, that stops blood from clotting)

anticoagulant (substance that prevents coagulation, that stops blood from clotting)

anticoagulant

Source: wiktionary.org