tortuosity

Noun

tortuosity (countable and uncountable, plural tortuosities)

1. tortuousness; tortuous condition or nature.
2. Crookedness.
   • So far from seeking to "pettifogulise"—i.e., to find evasions for any purpose in a trickster's minute tortuosities of construction—exactly in the opposite direction, from mere excess of sincerity, most unwillingly I found, in almost everybody's words, an unintentional opening left for double...1853, Thomas De Quincey, “Introduction to the World of Strife”, in Autobiographic Sketches (De Quincey’s Works; I), London: James Hogg & Sons, →OCLC, page 59
3. A property of curve being tortuous, commonly used to describe diffusion in porous media.