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

In mathematics, a concave function is one for which the function value at any convex combination of elements in the domain is greater than or equal to that convex combination of those domain …

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

Jul 13, 2021 · Concave and convex are literal opposites—one involves shapes that curve inward and the other involves shapes that curve outward. The terms can be used generally, but …

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 …

Add to word list curved inward: a concave lens (Definition of concave from the Cambridge Academic Content Dictionary © Cambridge University Press)

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, …

Jan 20, 2026 · Adjective concave (comparative more concave, superlative most concave) Curved like the inner surface of a sphere or bowl. (geometry, not comparable, of a polygon) Not …

Illustrated definition of Concave: Curved inwards. Example: A polygon (which has straight sides) is concave when there are dents or indentations...

The concavity of the graph of a function refers to the curvature of the graph over an interval; this curvature is described as being concave up or concave down.