The Collaborative International Dictionary
paddle box
paddlebox \paddlebox\, paddle box \paddle box\n. 1. a wooden covering for the upper part of the paddle wheel of a steam vessel.
Wiktionary
paddle box
n. (context lang=en nautical) An enclosed structure around a paddlewheel.
WordNet
paddle box
n. a wooden covering for the upper part of a paddlewheel [syn: paddle-box]