convex
/'kɔn'veks/
Definition
- Adjective:
- Curving or bulging outward: Describes a surface or shape that curves outward, like the exterior of a sphere or a dome. The opposite of concave (curving inward).
Examples of Usage
- Adjective:
- A convex lens is thicker in the middle than at the edges.
- The convex side of a spoon reflects a distorted, enlarged image.
- The mirror had a convex surface, providing a wide-angle view of the room.
Advanced Usage
- Mathematical/Geometric Context: In geometry, a polygon is convex if all its interior angles are less than 180° and no line segment between two points on its boundary ever goes outside the polygon.
- A square is a convex polygon, but a star shape is not.
- Economics/Function Context: A function is described as convex if the line segment between any two points on its graph lies on or above the graph.
- The utility function in the model was assumed to be convex.
Variants and Related Words
- Convexity (noun): The state or quality of being convex.
- The convexity of the mirror allowed for a broader field of vision.
- Convexly (adverb): In a convex manner; with an outward curve.
- The surface curved convexly.
Synonyms
- Protuberant: Bulging outward.
- Bulging: Swelling outward.
- Rounded: Having a curved shape.
Antonyms
- Concave: Curving or hollowed inward.
- Hollow: Having a sunken or indented area.
- Depressed: Pressed or sunk down from the surface.
Adjective
-
curving or bulging outward
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