#clod__ball__glob__lump__clump__chunk  a compact mass; "a ball of mud caught him on the shoulder"
  supertype:  agglomeration  a jumbled collection or mass
  subtype:  clot__coagulum  a lump of material formed from the content of a liquid
     subtype:  thrombus  a blood clot formed within a blood vessel and remaining attached to its place of origin
     subtype:  embolus__embolu  an abnormal particle (e.g. an air bubble or part of a clot) circulating in the blood
  subtype:  gob  (British) a lump of slimey stuff; "a gob of phlegm"
  subtype:  clew  a ball of yarn or cord or thread

No statement uses or specializes clod; click here to add one.