watercourse
- n natural or artificial channel through which water flows
- n a natural body of running water flowing on or under the earth
- n a conduit through which water flows
- The 700-year-old watercourse speeds alongside a walkway before dipping underground to re-emerge over a huge cut stone with small man-made channels that project two cascading spouts .
- An uncommonly well-told account of the author's sentimental journey by canoe down the Brazos River of western Texas, a watercourse that was to be destroyed by a power dam project.
- Then come the draglines, their heads dipping methodically to gouge the new, deeper watercourse.