礌[礧]lèi

Ⅰ [书]  (以木、石下投) push stone missiles or wooden beams down from a height: ～ 石相击 throw stones on enemy Ⅱ (自高处投击敌人的木、石) stone missiles or wooden beams used by defenders of cities against enemy attack
另见 see also léi; lěi。