If you move about much you're likely to unsettle the clot and start it again.
It will, after a time, turn sour, separating like blood into clot and serum.
A clot of mud caught the knight on the side of his bullet head.
When the clot has separated, it is picked out with a needle, leaving the serum.
In short, the play is one clot of blood from beginning to end.
The clot of suppurative phlebitis cannot be absorbed and cannot organize.
Doctors said Dillingham's blood circulation was stopped by a clot of blood.
A clot of blood on the brain may cause instant and unexpected death.
It was ugly, but not crippling, and it was already starting to clot.
If he couldn't move himself, perhaps he could move the clot.