A unit of area equal to one square rod [1]. A rod of area covers exactly 272.25 square feet or about 25.292 85 square meters. There are 40 rods in a rood and 160 rods in an acre
Russ Rowlett (Director), How Many? A Dictionary of Units of Measurement, Center for Mathematics and Science Education University of North Carolina, USA 2005. http://www.unc.edu/~rowlett/units/dictA.html, (Unit of Meas and Covr Factors - Amer) {608}