Definition of concave adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

The meaning of CONCAVE is hollowed or rounded inward like the inside of a bowl. How to use concave in a sentence.

Sep 9, 2023 · Concave lenses focus light inside the curve of the lens, while convex lenses focus light using the outer curve. A lens that curves like a “C” (no flat side) is both concave or convex, …

The concave, shiny building is built to maximize the use of sunlight, even on overcast days.

Jul 13, 2021 · Concave vs. convex lenses Concave lenses—those that are thicker around the edges than they are in the center— disperse light rays, which can have the effect of making things look …

1. curved or hollowed inward like the inside of a circle or sphere. Compare convex (def. 1). 2. (of a polygon) having at least one interior angle greater than 180°. n. 3. a concave surface, part, line, or …

A surface that is concave curves inwards in the middle. ...a concave stomach. ...the concave bottom of an empty hair spray container.

We can help coordinate cost savings such as splitting room cost across the two nights between two different parties using the same room. And we are pleased to announce the return of the “Party …

Nov 1, 2025 · concave (comparative more concave, superlative most concave) Curved like the inner surface of a sphere or bowl. (geometry, not comparable, of a polygon) Not convex; having at least …

CONCAVE definition: curved like a segment of the interior of a circle or hollow sphere; hollow and curved. See examples of concave used in a sentence.