noun

• (fishing) A long slender usually tapering pole used for angling; fishing rod.
  "When I hooked a snake and not a fish, I got so scared I dropped my rod in the water."
• (archaic) A unit of length equal to 1 pole, a perch, ¹⁄₄ chain, 5+¹⁄₂ yards, 16+¹⁄₂ feet, or exactly 5.0292 meters (these being all equivalent).
  "‘And this thicket, so full of a natural art, was in the immediate vicinity, within a few rods, of the dwelling of Madame Deluc, whose boys were in the habit of closely examining the shrubberies about them in search of the bark of the sassafras.’"
• (archaic) A unit of area equal to a square rod, 30+¹⁄₄ square yards or ¹⁄₁₆₀ acre.
  "The house had a small yard of about six rods in size."
• (anatomy) A rod cell: a rod-shaped cell in the eye that is sensitive to light.
  "The rods are more sensitive than the cones, but do not discern color."

verb

• (construction) To reinforce concrete with metal rods.
• (transitive) To furnish with rods, especially lightning rods.
• (slang, vulgar, transitive) To penetrate sexually.
  "On impulse he moved around to the opposite side of the couple, in the direction which Grace's broad buttocks were pointed, for a full view of the big boned woman's back side. Now Grace wouldn't mind one iota if he rodded her from the rear."
• (slang) To hot rod.
  "There were three clear sets, more than what you might expect at Heartbreak Point, given all the juvies rodding in and out of there with their girlfriends."