Watershed in a sentence as a noun

Could Pinterest be a watershed moment in the copyright wars?

Frankly no - I see that event as the watershed when the appengine community suddenly matured.

Your local watershed doesn't really care that the excess phosphorus that's being dumped into it comes from certified organic bone meal.

Some said his death could be a watershed moment in the ongoing intellectual property debate over the things people share and create, and how they share and create them.

It's not an arbitrary "30 years of personal computing"... it's commemorating a watershed moment.

Obvious outcomes -- like the 2008 financial crisis, which occurred on his watch as Chairman of the Senate Finance Committee-- are "watershed" and heretofore "never seen before.

The back of my envelope has too much written on it at the moment, but if you look at the total water flow in that watershed and multiply it by the heat of vapoization of water you get a staggeringly large energy flow.

I also feel that it's something of a watershed in the site's history in that there are a lot more unrelated political articles appearing in its wake, with negative consequences for the quality of discourse and content here.

Watershed definitions

noun

a ridge of land that separates two adjacent river systems

See also: divide

noun

the entire geographical area drained by a river and its tributaries; an area characterized by all runoff being conveyed to the same outlet; "flood control in the Missouri basin"

See also: basin

noun

an event marking a unique or important historical change of course or one on which important developments depend; "the agreement was a watershed in the history of both nations"

See also: landmark