The Collaborative International Dictionary of English v.0.48:
Rowboat \Row"boat`\, n. A boat designed to be propelled by oars instead of sails. [1913 Webster]WordNet (r) 3.0 (2006):
rowboat n 1: a small boat of shallow draft with cross thwarts for seats and rowlocks for oars with which it is propelled [syn: dinghy, dory, rowboat]