1. waterway(n = noun.object) - a navigable body of water;
is a kind of body of water, water
has particulars: ditch, mare clausum, mare liberum, rapid
2. waterway(n = noun.artifact) watercourse - a conduit through which water flows;
is a kind of way
has particulars: canal, flume, headrace, tailrace
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. [1913 Webster]
waterway, n.
1 a navigable channel.
2 a route for travel by water.
3 a thick plank at the outer edge of a deck along which a channel is hollowed for water to run off by.