RG has various meanings in the Weather category. Discover the full forms, definitions, and usage contexts of RG in Weather.
An extensive, nearly level, low desert plain from which fine sand has been removed by wind, leaving a sheet of coarse, smoothly angular, windpolished gravel and small stones lying on an alluvial soil, strongly cemented by mineralized solutions to form a broad desert pavement.
WeatherTerm used by miners when they offer uncut opal for sale.
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