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This naturally suggests the ideas of curvature and tortuosity, which are fully dealt with mathematically, before the notion of velocity is introduced.

It is not straight as in health, but is tortuous, because the overgrowth in the walls, which makes it thick, has also made it longer than normal, thus producing tortuosity.

But she gave up that point as being only one more of the inexplicable tortuosities of a man's sense of honour.

In involutionary sclerosis there is a gradual thickening and tortuosity of the vessel, which although it may be greater than in the hyperpietic cases, yet is never so dangerous to life.

Lateral passages branched out on either side in such labyrinthine tortuosity of confusion that Nidia’s first thought was how it would be possible for any one to find his way through here a second time.