rod rod /ˈrɑːd/

noun

1. () Any rod-shaped bacterium  ( rod )
   any rod-shaped bacterium
   
2. () A long thin implement made of metal or wood  ( rod )
   a long thin implement made of metal or wood
    She used a metal rod to stir the paint evenly.
   She used a metal rod to stir the paint evenly.
   
   
3. [American] A gangster's pistol  ( gat , rod [American] )
   a gangster's pistol
   
   
4. A visual receptor cell that is sensitive to dim light  ( retinal rod , rod , rod cell )
   a visual receptor cell that is sensitive to dim light
   
5. A square rod of land  ( perch , pole , rod )
   a square rod of land
   
6. [British] A linear measure of 16.5 feet  ( perch [Archaic, British] , pole [British] , rod [British] )
   a linear measure of 16.5 feet