- Chiefly British. the ridge or crest line dividing two drainage areas; water parting; divide.
- the region or area drained by a river, stream, etc.; drainage area.
- Architecture. wash(def 44).
- an important point of division or transition between two phases, conditions, etc.: The treaty to ban war in space may prove to be one of history's great watersheds.
- constituting a watershed: a watershed area; a watershed case.
Origin of watershed
Examples from the Web for watershed
The alleged FBI and U.S. Attorney investigations into the Newark Watershed may have something to do with that.
In a recent interview with NJTV, Booker called the Watershed, “one of the big policy losses that I had in Newark.”
He tells us about the devastating consequences of these toxins entering the watershed.Our Trip to The Climate War's Ground Zero
September 19, 2014
To say that the past few years have been a watershed period of improvement for LGBT America is an understatement.Mississippi Is Hell for These Lesbians
August 8, 2014
The success of Guardians of the Galaxy maybe, just maybe, could be a watershed moment for women.'Guardians of the Galaxy' Is Not a Watershed Moment for Women
August 4, 2014
It follows the watershed from the lake to Oneida, and clears the Mohawk Valley northward.The Trail Book
Accordingly he crossed what is called the 'watershed' between the Rhine and the Danube.The Book-Hunter
John Hill Burton
The watershed of the Sutlej and Jamna runs through the tract.The Panjab, North-West Frontier Province, and Kashmir
Sir James McCrone Douie
Wilkes, in fact, seemed to be a watershed in early politics.Robert Toombs
Pleasant A. Stovall
Crossing this lake, yet another "carry" takes us over the watershed.America, Volume IV (of 6)
- the dividing line between two adjacent river systems, such as a ridge
- an important period or factor that serves as a dividing line
Word Origin and History for watershed
"line separating waters flowing into different rivers," 1803, from water (n.1) + shed "ridge of high ground between two valleys or lower ground, a divide" in the topographical sense, perhaps from shed (v.) in its extended noun sense of "the part of the hair of the head" (14c.). A loan-translation of German Wasser-scheide. Figurative sense is attested from 1878. Meaning "ground of a river system" is from 1878.
- A ridge between two areas that directs drainage to either side.
- The area of marginal blood flow at the extreme periphery of a vascular bed.
- Ridges of the lumbar vertebrae and the pelvic brim formed in the abdominal cavity, which determine the direction in which a free effusion will gravitate when the body is supine.
- A continuous ridge of high ground forming a divide between two different drainage basins or river systems.
- The region enclosed by such a divide and draining into a river, river system, or other body of water.
A ridge of high land dividing two areas that are drained by different river systems. On one side of a watershed, rivers and streams flow in one direction; on the other side they flow in another direction. Also, the area drained by a water system.