n. | 1. | (Naut.) Heavy plank or timber extending fore and aft the whole length of a vessel's deck at the line of junction with the sides, forming a channel to the scuppers, which are cut through it. In iron vessels the waterway is variously constructed. |
Noun | 1. | waterway - a navigable body of water |
2. | waterway - a conduit through which water flows Synonyms: watercourse |