مِرْدَسٌ
Root: ردس
Full Definition
مِرْدَسٌ
A hard thing with which a thing is beaten so as to be broken, or crushed, thereby: and
مِرْدَاسٌ signifies [in like manner] a big stone with which a thing is so beaten: or each, a hard and broad thing with which a wall and the ground and a lump of dry clay are so beaten: or the latter word, a mass of stone, or rock, which one throws; and the former has this meaning also, as well as the first meaning: or the latter word, or each, a stone which is thrown into a well in order that one may know whether there be in it water or not. (S, M. [See also مِرْجَاسٌ.])