noun.
A boat with a flat bottom and square ends used for transporting freight on inland waterways.
The Century Dictionary and Cyclopedia
noun.
A flat-bottomed boat of considerable size, roughly made of strong timbers, for floating merchandise, etc., down the Mississippi and other western rivers.
the GNU version of the Collaborative International Dictionary of English
noun.
A boat with a flat bottom and square ends; -- used for the transportation of bulky freight, especially in shallow waters.