watershed
waw ter shed
- n a ridge of land that separates two adjacent river systems
- n the entire geographical area drained by a river and its tributaries; an area characterized by all runoff being conveyed to the same outlet
- n 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
- The research proved to be a watershed in the study of the disorder and Fuller's name was forever linked with modern understanding of the ailment.
- His successful negotiations with AOL in 2002 yielded a watershed deal in the company's meteoric growth.
- Taiwan's presidential election might prove to be a perilous watershed in its relationship with China.