Medical Dictionary


noun \ˈpləg\

Medical Definition of PLUG

:  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 opening (as of the cervix or a skin lesion) c :  a filling for a hollow tooth
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