yes there is.
Shedwater.
The term applied to the outside boundaries of a watershed is "MEANDER."
A watershed divide is a ridge of land that separates one watershed from another by directing the flow of surface water in different directions.
The great lakes have a watershed seperating the lakes from the sea
a divide
A watershed boundary is the line separating one watershed from another. It marks the area where water flows into a particular river, lake, or ocean. Everything that falls within a watershed boundary ultimately drains to the same outlet point.
most likely a late Victorian
The term Watershed when use in a Sentence like, "That was a watershed moment", means simply a turning point. So a television watershed could mean a point in time when things changed. For instance, the very First Super Bowl broadcast is considered a watershed moment in television. Some people feel that President Reagan's speech calling the Soviet Union an evil empire was a watershed moment in politics.
Catchment/drainage basin.
I believe its called a water shed but I'm not completely sure about that.AnswerA watershed (one word) is a ridge or other dividing line between stream catchments, although the term is (confusingly) also applied to the catchment area. Another term is drainage basin.
A nested watershed is simply a watershed within a watershed. An example might be the Platte River watershed which is a nested watershed within the Missouri River watershed which in turn is nested within the Mississippi River watershed.
One watershed is separated from another by a ridge of land
A watershed.