Rod - Definition
rod
n 1: a long thin implement made of metal or wood
2: any rod-shaped bacterium
3: a linear measure of 16.5 feet [syn: perch, rod, pole]
4: a square rod of land [syn: perch, rod, pole]
5: a visual receptor cell that is sensitive to dim light [syn:
rod, rod cell, retinal rod]
6: a gangster's pistol [syn: gat, rod]