sinuosity
/sɪˈnuːsɪti/Definitions
1. noun
The state or quality of being sinuous or curving; a sinuous or curving shape or course.
“The sinuosity of the river made it difficult to navigate.”
2. noun
A measurement of the degree to which a river or other natural watercourse winds or curves.
“The sinuosity of the river was used to calculate its total length.”