What does the word curvature mean?

Usage examples for curvature

  1. With regard to this object Chacornac pointed out that, owing to the curvature of the surface of the moon, a spectator at the centre of the floor " would think himself in a boundless desert," because the surrounding wall, although in one place nearly 10, 000 feet high, would lie entirely beneath his horizon. – The Story of the Heavens by Robert Stawell Ball
  2. As the ship cleared the promontory on the eastern side of the cove, we again opened a curvature of the ice, which gave a little more water to leeward. – The Monikins by J. Fenimore Cooper
  3. When the wedge thus formed being driven in, at first rendered the line level, but afterwards, by the pressure, made a curvature in the centre, the Africans, who had now formed wings on each side of them, surrounded the Romans on both sides, who incautiously rushed into the intermediate space; and presently extending their wings, enclosed the enemy on the rear also. – The History of Rome; Books Nine to Twenty-Six by Titus Livius