water system

water system

n.

1. A river and all its tributaries.

2. A water supply.

Thesaurus

Noun	1.	water system - a river and all of its tributaries system, scheme - a group of independent but interrelated elements comprising a unified whole; "a vast system of production and distribution and consumption keep the country going" river - a large natural stream of water (larger than a creek); "the river was navigable for 50 miles"
	2.	water system - a facility that provides a source of water; "the town debated the purification of the water supply"; "first you have to cut off the water" water supply, water facility, installation - a building or place that provides a particular service or is used for a particular industry; "the assembly plant is an enormous facility" infrastructure, base - the stock of basic facilities and capital equipment needed for the functioning of a country or area; "the industrial base of Japan" artificial lake, man-made lake, reservoir - lake used to store water for community use water main - main (a pipe or conduit) for conveying water