بيد

بَيْدَاآءُ بيداآء A desert; or a waterless desert: (S, M, A, Mgh, Msb, K:) or one that is plain, or level, in which horses are made to run: (M:) or one wherein is nothing: (TA:) so called, accord. to IJ, because it [often] destroys him who alights, or sojourns, in it: (M, Msb: *) or a plain tract, slightly elevated, with few trees, and without herbage, extending to the distance of a day's journey, or half a day's journey, or less, rugged and hard, and only in a country of mould, or clay: (ISh:) pl. بِيْدٌ: (S, M, Msb, K:) it has a pl. of a form proper to epithets because it is originally an epithet: (M:) by rule it should be بَيْدَاوَاتٌ. (M, K.)