Concavo-convex definition

kŏn-kāvō-kŏn-vĕks
Concave on one side and convex on the other.
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Having greater curvature on the concave side than on the convex side. Used of a lens.
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Concave on one side and convex on the other.
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(optics) Designating a lens whose concave face has a greater degree of curvature than its convex face, so that the lens is thinnest in the middle.
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Alternative form of concavo-convex.
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(optics) Having one side concave and the other convex.
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Concavo-convex Sentence Examples

  • In the disk plough, which is built both as a riding and a walking plough, the essential feature is the substitution of a concavo convex disk, pivoted on the plough beam, for the mould-board and share of the ordinary plough.

  • He described the reflecting goniometer in 1809 and the camera lucida in 1812, provided microscopists with the "Wollaston doublet," and applied concavo-convex lenses to the purposes of the oculist.

  • The wing of the bird, like that of the insect, is concavo-convex, and more or less twisted upon itself when extended, so that the anterior or thick margin of the pinion presents a different degree of curvature to that of the posterior or thin margin.

  • His aeroplanes were variously shaped, and were, as a rule, concavo-convex, the convex surface being directed upwards.

  • High overhead, like a gigantic awning, was the slightly concavo-convex main aeroplane, tilted towards the front at an imperceptible angle, and stretched taut.

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