Synonyms for Watercourses:

n.

•rivers (noun)
Creeks, torrents, freshets, Floods, Rivers, streams, deluges, waters, brooks, rivulets.

Usage examples for watercourses

1. English merchants saw that New England vessels were visiting the scattered settlements on the watercourses and establishing a lucrative exchange of manufactured goods for the tobacco, corn and lumber of Carolina. – School History of North Carolina by John W. Moore

2. The color of the heights is very tender; but there are long streaks and patches of dark green, marking watercourses and very abrupt surfaces. – Two Years in the French West Indies by Lafcadio Hearn

3. In the narrow, straight streets the carnage was fearful, and blood soon trickled down the watercourses and dyed the pavements. – Through Five Republics on Horseback by G. Whitfield Ray