The Collaborative International Dictionary of English v.0.48:
Wheelhouse \Wheel"house`\, n. (Naut.) (a) A small house on or above a vessel's deck, containing the steering wheel. (b) A paddle box. See under Paddle. [1913 Webster]WordNet (r) 3.0 (2006):
wheelhouse n 1: an enclosed compartment from which a vessel can be navigated [syn: pilothouse, wheelhouse]