convexo-concave

/kɔn'veksou'kɔnkeiv/

Thân thiện

A magnifying glass has a convexo-concave lens.

Definition

1. Adjective:
   • Convex on one side and concave on the other, with the convex side having a greater curvature than the concave side: Describes a shape or lens that bulges outward on one surface and curves inward on the opposite surface, where the outward curve is more pronounced.

Usage Examples

• Adjective:
  • The old telescope used a convexo-concave lens to focus the light.
  • A convexo-concave shape can be seen in some specialized optical components.

Advanced Usage

• Technical/Optical Context: Primarily used in technical fields like optics, physics, and engineering to describe the specific curvature of lenses or surfaces.
  • The design required a convexo-concave element to correct for spherical aberration.

Variants and Related Words

• Concavo-convex (adj): Concave on one side and convex on the other, with the concavity being greater than the convexity. (This is a distinct shape with the opposite curvature relationship).
• Biconvex (adj): Convex on both sides.
• Plano-convex (adj): Flat on one side, convex on the other.

Synonyms

• Meniscus (n): In optics, a lens that is convex on one side and concave on the other. (Note: "Meniscus" is a more common general term but does not specify which curvature is greater).

Antonyms

• Concavo-convex (adj): As defined above.
• Flat (adj): Having no curvature.

Học thuật

Adjective

1. convex on one side and concave on the other with the convexity being greater than the concavity