n :  a piece of material (as wood or alloy) used or serving to fill a hole: as  a  :  the piece in a cock that can be turned to regulate the flow of liquid or gas  b  :  an obstructing mass of material in a bodily vessel or the opening of a skin lesion <a necrotic >  <a fibrinous >   c  :  a filling for a hollow tooth
vt, plugged  plug*ging  1  :  to stop, make tight, or secure (as an opening) by or as if by insertion of a plug  :  close an opening in  2  :  to fill a cavity in (a tooth) .
 
 
 
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