Biography Wikipedia Wikipedia: Watershed may refer to: Hydrology and geomorphologyWatershed: drainage divide - (non-North American usage)Watershed: drainage basin - (North American usage) MedicalWatershed area (medical), an area with overlapping blood supply Watershed stroke, a stroke in a brain watershed area TechnologyWatershed (image processing), algorithms used in image processing EntertainmentWatershed (television), a time each evening after which certain material may be shownWatershed (Bristol), a cross-artform organisation and venue BandsWatershed (American band)Watershed (South African band)Watershed (Christian band) AlbumsWatershedâ (Grant McLennan album)Watershed (K.D. Lang album)Watershed (Opeth album)