- a unit of area used for measuring small quantities of land. Equal in size to a square with sides 1 rod in length. Equal to 30Â¼ square yards or 1/160 acre. Sometimes known, simply, as a rod.
- (hardware) a solid, elongated bar whose shape is a square prism.
- ''A square rod could be made of acrylic, nylon, wood, or brass.
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