حجر

حَاجِرٌ حاجر The part of the brink (شَفَة) of a valley that retains the water, (S, K,) and surrounds it; (ISd;) as also ↓ حَاجُورٌ: pl. of the former حُجْرَانٌ. (S, K.) High land or ground, the middle of which is low, or depressed; (K;) as also ↓ مَحْجِرٌ: (TA:) and ↓ مَحَاجِرُ [pl. of the latter] low places in the ground, retaining water. (A.) A fertile piece of land, abounding with herbage, low, or depressed, and having elevated borders, upon which the water is retained. (AHn.) A place where water flows, or where herbs grow, surrounded by high ground, or by an elevated river. (T, TA.) A place where trees of the kind called رِمْث grow; where they are collected together; and a place which they surround: (M, K:) pl. as above. (K.) ― -b2- A wall that retains water between houses: so called because encompassing. (TA.)