• Bengali Word মুষল English definition (noun) 1 pestle (especially of a husking-tree which is operated in the seesaw manner of a mortar). 2 mace; club; mallet. মুষলধার, মুষলধারা (noun(s)) torrential downpour. মুষলধারায়/ মুষলধারে বৃষ্টি পড়া rain in torrents/ cats and dogs.