إِيدَامَةٌ

(assumed tropical:) Level, hard, but not rugged, ground: (As:) or hard ground without stones; (K;) from أَدِيمٌ signifying the “surface” of the earth or ground: (TA:) or ground somewhat elevated; not much so; only found in plains, and producing vegetation, which, however, is disapproved, because its situation is rugged, and little water remains in it: (ISh:) plural أَيَادِيمُ, (As, Esh-Sheybánee, IB, K,) which J erroneously says has no singular: (K:) for he says, [in the S,] أَيَادِيمُ signifies hard and elevated tracts (مُتُون) of ground; and has no singular (TA.)