Fibrin (noun)

1. A fibrous protein that is formed from fibrinogen during blood clotting.
2. A substance that is formed in the blood during coagulation and that forms a network of fibers to form a clot.

Origin:

Fibrin is derived from the latin word "fibra" meaning fiber, it was first used in the late 19th century in the field of physiology and pathology.

Examples:

1. The formation of fibrin is an important step in the process of blood clotting.
2. The fibrin network that forms during blood clotting helps to stop bleeding by plugging the hole in a blood vessel.
3. The fibrin clot that forms at the site of injury is eventually dissolved by enzymes in the blood.
4. The researchers used an imaging technique to visualize the fibrin that forms during coagulation.
5. Fibrin plays a crucial role in the normal healing process of the body.