Erw vs Erg - What's the difference?
erw | erg |
(historical) A medieval Welsh unit of surface area equal to 11664 sq. ft. or about ¼ acre.
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The unit of work or energy, being the amount of work done by a dyne working through a distance of one centimeter. Equal to 10?7 joules.
(geomorphology) A large desert region of sand dunes with little or no vegetation, especially in the Sahara.
