From Old English clott, from Proto-Germanic *klautaz (“lump”).
clot (plural clots)
- A thrombus, solidified mass of blood.
- A solidified mass of any liquid.
- A silly person.
clot (third-person singular simple present clots, present participle clotting, simple past and past participle clotted)
- (intransitive) To form a clot or mass.
- (transitive) To cause to clot or form into a mass.