Lighter \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.
[1913 Webster]
{Lighter screw} (Mach.), a screw for adjusting the distance
between the stones in a grinding mill by raising or
lowering the bridgetree.
[1913 Webster]