07417851-n
(2)
|
turning point, landmark, watershed
| |
an event marking a unique or important historical change of course or one on which important developments depend |
08679369-n
(1)
|
watershed, water parting, divide
| |
a ridge of land that separates two adjacent river systems |
08518940-n
|
basin, watershed, river basin, drainage basin, catchment area, catchment basin, drainage area
| |
the entire geographical area drained by a river and its tributaries; an area characterized by all runoff being conveyed to the same outlet |