A thrombus, solidified mass of blood.
A solidified mass of any liquid.
A silly person.
To form a clot or mass.
To cause to clot or form into a mass.
The iron-containing substance in red blood cells that transports oxygen from the lungs to the rest of the body; it consists of a protein (globulin), and haem (a porphyrin ring with an atom of iron at its centre).