a county of South Wales; its air is very sharp and piercing, and the soil barren without great cultivation, it being mountainous and rocky, especially in the north and west parts, which are only fit for feeding cattle. Its extent from east to west is 24 miles, and from north to south about 22. It has several rivers, the chief of which is the Wye. It is bounded on the east by Herefordshire, on the south and west by Brecknockshire, and on the north by Montgomeryshire. It has 52 parishes and four market-towns; the principal of which is Radnor, the county-town.

RADIX. See Root.