D defs.my
Entry 1 sense Webster, 1913

Flatboat

/flăt'-bōtˌ/ · Flat·boat · IPA /flˈætbˌoʊt/
01 n. A boat with a flat bottom and square ends; -- used for the transportation of bulky freight, especially in shallow waters.
  1. 1.
    A boat with a flat bottom and square ends; -- used for the transportation of bulky freight, especially in shallow waters.