أَعْبَلُ

A mountain of which the stones are white: (K:) or rough, rugged, or thick, stone, which may be red, and may be white, and may be black, (ISh, O, K, *) and may be a rugged, high mountain: (ISh, O:) explained in the S as meaning white stones; but correctly, as IB says, white stone: and أَعْبِلَةٌ is an irreg. plural thereof. (TA.)

And [the feminine] عَبْلَاءُ signifies A rock: (K, TA: [in the CK, أَو should be inserted after الصَّخْرَةُ:]) or a white rock: (Th, S, K, TA:) or a white, hard rock: (TA:) plural عِبَالٌ, like بِطَاحٌ plural of بَطْحَاءُ. (S, TA.) And A white [hill, or eminence such as is termed] أَكَمَة. (TA.) And A narrow strip (طَرِيدَةٌ) in the midst of a land, the stones of which are white, resembling the stones from which fire is struck, and sometimes people do strike fire with some of them: they are not what are called مَرْو; [but] resembling بِلَّوْر [i. e. crystal]. (TA.)