tortuosity

noun, plural tor·tu·os·i·ties.

1. the state of being tortuous; twisted form or course; crookedness.
2. a twist, bend, or crook.
3. a twisting or crooked part, passage, or thing.

noun plural -ties

1. the state or quality of being tortuous
2. a twist, turn, or coil

n.

1. The quality or condition of being tortuous; twistedness or crookedness.
2. A bent or twisted part, passage, or thing.