convex shape

Thân thiện

A convex shape like a magnifying glass focuses sunlight onto a leaf.

Definition

1. Noun:
   • A shape that curves or bulges outward: A "convex shape" is a geometric form where, for any two points within the shape, the straight line segment connecting them lies entirely inside the shape. Its surface curves outward, like the exterior of a sphere or a dome.

Usage Examples

• Noun:
  • The lens had a smooth convex shape. (The lens had a form that bulged outward.)
  • In geometry, a circle is a classic example of a convex shape. (In geometry, a circle is a classic example of a form that curves outward.)
  • The mirror's convex shape provided a wide field of view. (The mirror's outward-bulging form provided a wide field of view.)

Advanced Usage

• "Strictly convex shape": A shape that is convex and where no part of its boundary is a straight line segment.
  • An ellipse is a strictly convex shape. (An ellipse is a form that curves outward with no flat sides.)

Variants and Related Words

• Convex (adj): Having a surface or outline that curves outward.
  • The convex surface of the magnifying glass. (The outward-curving surface of the magnifying glass.)
• Convexity (n): The state or quality of being convex.
  • The convexity of the lens is carefully calculated. (The outward-curving quality of the lens is carefully calculated.)

Synonyms

• Bulge: A rounded swelling that distorts a flat surface.
• Protuberance: A thing that protrudes from something else.
• Outward curve: A curve that bends away from the center.

Antonyms

• Concave shape: A shape that curves or bends inward.
  • A bowl has a concave shape. (A bowl has a form that curves inward.)

Học thuật

Noun

1. a shape that curves or bulges outward

Từ đồng nghĩa

• convexity