interfluve
in ter fluve |ˈintərˌflo͞ov ˌɪntərˈfluv | ▶noun Geology a region between the valleys of adjacent watercourses, esp. in a dissected upland. DERIVATIVES in ter flu vi al |ˌintərˈflo͞ovēəl |adjective ORIGIN early 20th cent.: back-formation from interfluvial.
interfluve |ˈɪntəfluːv | ▶noun Geology a region between the valleys of adjacent watercourses, especially in a dissected upland. DERIVATIVES interfluvial adjective ORIGIN early 20th cent.: back-formation from interfluvial.