LIGHTER (2)

Light″er, n. [[D. ligter, fr. ligt light. See Light not heavy.]] (Naut.) A large boat or barge, mainly used in unloading or loading vessels which can not reach the wharves at the place of shipment or delivery. Lighter screw (Mach.), a screw for adjusting the distance between the stones in a grinding mill by raising or lowering the bridgetree.