سِلْعٌ

A cleft, or fissure, in a mountain, (Lh, IAar, Yaakoob, S, K,) having the form of a crack; (TA;) as also سَلْعٌ, (S, K,) according to some: (S, TA:) plural [of either] أَسْلَاعٌ (Yaakoob, S, K) and (of the latter, TA) سُلُوعٌ. (K.)

Also A like, or fellow; (AA, L, K;) and so سَلْعٌ: (L, TA:) plural أَسْلَاعٌ. (IAar, L, K.) You say, هٰذَا سِلْعُ هٰذَا This is the like of this. (TA.) And غُلَامَانِ سِلْعَانِ Two boys, or young men, that are fellows, or equals in age: and غِلْمَانٌ أَسْلَاعٌ. (Ibn-'Abbád, K.) And أَعْطَاهُ أَسْلَاعَ إِبِلِهِ He gave him the likes, or fellows, of his camels. (L.)

And the plural أَسْلَاعٌ signifies also The portions of flesh that cling to the نَسَيَانِ [or two sciatic veins] of a mare when she is fat. (Sgh, K.)