[ AS. s&aemacr_;bāt. ] 1. A boat or vessel adapted to the open sea; hence, a vessel considered with reference to her power of resisting a storm, or maintaining herself in a heavy sea; as, a good sea boat. [ 1913 Webster ]
2. (Zool.) A chiton. [ 1913 Webster ]
n. A boat or vessel propelled by steam power; -- generally used of river or coasting craft, as distinguished from ocean steamers. [ 1913 Webster ]
n. 1. The occupation or business of running a steamboat, or of transporting merchandise, passengers, etc., by steamboats. [ 1913 Webster ]
2. (Bookbinding) The shearing of a pile of books which are as yet uncovered, or out of boards. Knight. [ 1913 Webster ]