Clot (noun)

1. A thick and semi-solid mass formed by the coagulation of a liquid, such as blood.
2. A compact or dense mass of any substance.
3. A lump or mass formed by the accumulation of particles or material.

Origin:

Derived from the middle english word 'cloten', meaning 'to coagulate or congeal'.

Examples:

1. The wound was bleeding, and a clot formed to stop the bleeding.
2. The blood clot was a serious concern for her health.
3. The clot of paint was so thick that it clogged the brush.
4. A clot of mud had formed on the bottom of the river.
5. The clot of dough was ready to be shaped into a loaf.