Noun rod has 6 senses
  1. perch, rod, pole - a linear measure of 16.5 feet
    --1 is a kind of linear unit
    --1 is a part of furlong
    --1 has parts: yard, pace
  2. rod - a long thin implement made of metal or wood
    --2 is a kind of
    --2 has particulars:
     baton; connecting rod; control rod; fishing rod, fishing pole; pole; ramrod; ramrod; rotating shaft, shaft; shaft; stair-rod; tie rod
  3. rod - any rod-shaped bacterium
    --3 is a kind of
    bacteria, bacterium
    --3 has particulars: streptobacillus
  4. perch, rod, pole - a square rod of land
    --4 is a kind of area unit, square measure
  5. rod, rod cell, retinal rod - visual receptor cell sensitive to dim light
    --5 is a kind of visual cell
    --5 is a part of retina
    --5 has parts: visual purple, rhodopsin, retinal purple
  6. gat, rod - a gangster's pistol
    --6 is a kind of pistol, handgun, side arm, shooting iron