Home › Words › W › watercoursewatercourse/ˈwɔːtə(ɹ)ˌkɔː(ɹ)s/watercourse · noun — any channel, either natural or artificial, through which water flows.Definition from Wiktionary (CC BY-SA 3.0).watercourse is pronounced /ˈwɔːtə(ɹ)ˌkɔː(ɹ)s/.EtymologyFrom Middle English water course; equivalent to water + course.nounAny channel, either natural or artificial, through which water flows.Definitions & examples from Wiktionary (CC BY-SA 3.0).