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The meaning of CONCAVE is hollowed or rounded inward like the inside of a bowl. How to use concave in a sentence.
Concave means curving inward—like the shape of the inside of a bowl. Convex means curving outward—like the shape of the outside of a contact lens. To put it another way, a concave shape can be filled, while a convex shape creates a dome.
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.
adjective. us / kɑnˈkeɪv, kɑŋ- / Add to word list. curved inward: a concave lens. (Definition of concave from the Cambridge Academic Content Dictionary © Cambridge University Press)
Concave and convex describe the shape of a curve. Remember that “concave” resembles a cave! The terms “concave” and “convex” describe the curvature of objects or mathematical functions. They’re ubiquitous in a range of disciplines, including optics, mathematics, engineering, and everyday life.
uk / ˈkɒŋ.keɪv / us / ˈkɑːn.keɪv / Add to word list. curving in: a concave lens. Compare. convex. SMART Vocabulary: related words and phrases. Geometry: properties of circles & curves. amplitude. arched. bore. circularity. circumferential. concavity. concentrically. conic. curvy. domed. eccentric. girth. globular. incisura. lenticular. lentiform.
Illustrated definition of Concave: Curved inwards. Example: A polygon (which has straight sides) is concave when there are dents or indentations...
Definition of concave adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
Concave describes an inward curve; its opposite, convex, describes a curve that bulges outward. They are used to describe gentle, subtle curves, like the kinds found in mirrors or lenses.
1. curving inwards. 2. physics. having one or two surfaces curved or ground in the shape of a section of the interior of a sphere, paraboloid, etc. a concave lens. 3. mathematics. (of a polygon) containing an interior angle greater than 180°. 4. an obsolete word for hollow.