filament in WordNet English dictionary

1. a very slender natural or synthetic fiber
   fibril  filament  strand 
   
2. a thin wire (usually tungsten) that is heated white hot by the passage of an electric current
   filament 
   
3. a threadlike structure (as a chainlike series of cells)
   filament  filum 
   
4. the stalk of a stamen
   filament