• WordNet 3.6
    • n tortuosity a tortuous and twisted shape or position "they built a tree house in the tortuosities of its boughs","the acrobat performed incredible contortions"
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Century Dictionary and Cyclopedia
    • n tortuosity In geometry, the quality of being non-plane.
    • n tortuosity The state or attribute of being tortuous; tortuousness; crookedness.
    • n tortuosity A twisting or winding; a bend; a sinuosity.
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Chambers's Twentieth Century Dictionary
    • n Tortuosity state of being tortuous
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Chambers's Twentieth Century Dictionary
Fr.,—L. tortuosustorquēre, tortum, to twist.


In literature:

Its tortuosity is well known.
"Camp-Fire and Cotton-Field" by Thomas W. Knox
He who cheats his neighbour believes in tortuosity, and, as Carlyle says, has the Supreme Quack for his God.
"Browning as a Philosophical and Religious Teacher" by Henry Jones
Later she might fathom the tortuosities of her tyrant's mind.
"The Madigans" by Miriam Michelson
Tortuose -us: irregularly curved and bent; snake-like.
"Explanation of Terms Used in Entomology" by John. B. Smith
These changes give rise to marked tortuosity of the vessels.
"Arteriosclerosis and Hypertension:" by Louis Marshall Warfield

In science:

The graph is chosen to resemble some properties of the surrounding environment such as porosity or tortuosity.
Topological and Geometrical Random Walks on Bidisperse Random Sphere Packings
To compare with experiment we must make two corrections; first that our model has a larger fraction of atoms near the Vycor surface than experiment, and second that our cell has no tortuosity: the experimental path length for a superflow is greater than the straight line distance.
Superfluidity of Dense $^4$He in Vycor
Critical behavior near Tc, and vortex tortuosity for small B, have been neglected and may modify the behavior especially near Tc, so that the results of these formulas can not be expected to be exact numerical predictions, but as far as I can see they do indicate the right magnitude and general trend of the effect.
Dynamics of the Vortex Fluid in Cuprate Superconductors: the Nernst Effect