"Concave" is an adjective describing a surface that curves inward, like the inner surface of a sphere. Its antonym, "convex," describes a surface that curves outward, like the exterior of a sphere. In geometry, concave and convex refer to polygons. A concave polygon has at least one angle greater ...

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Definition of concave in the AudioEnglish.org Dictionary. Meaning of concave. What does concave mean? Proper usage and audio pronunciation (and phonetic transcription) of the word concave. Information about concave in the AudioEnglish.org dictionary, synonyms and antonyms.

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Concave describes shapes that curve inward, like an hourglass. Convex describes shapes that curve outward, like a football (or a rugby ball). Concave describes shapes that curve inward. The inside part of a bowl is a concave shape. After six months on a diet, Peter's once round cheeks looked ...

Definition of concave written for English Language Learners from the Merriam-Webster Learner's Dictionary with audio pronunciations, usage examples, and count/noncount noun labels.

STOP. Don't make this mistake ever again. Learn how to use convex and concave with definitions, example sentences, & quizzes at Writing Explained.

 · Top: a spoon with its convex side up. Bottom: a spoon with its concave side up.

lens [lenz] 1. a piece of glass or other transparent material so shaped as to converge or scatter light rays. See also glasses. 2. the transparent, biconvex body separating the posterior chamber and the vitreous body of the eye; it refracts (bends) light rays so that they are focused on the retina. Called also crystalline lens. In order for the eye to ...

Recent Examples on the Web: Noun. The interiors of both look great, with soft touch materials on nearly every surface, ambient lighting and attractive concave trim panels with unusual trim that looked like three-dimensional pieces of metal. — Mark Phelan, Detroit Free Press, "2019 Volvo XC40 SUV has wireless phone charging, carryout bag hook," 23 May 2018 Chalamet, 22, is five inches shorter ...

Some authors use the term concave set for a non-convex set, thus as opposite to a convex set.This is not generally acknowledged. A convex set is a subset of an affine space closed under convex combinations; a region where any two points may be joined by …

Concave and Convex Mirrors . Carlyle Moore Spherical mirrors can be divided into two classes: concave and convex. A spherical mirror is said to be concave if the reflecting surface and the center of curvature (the center of the sphere of which the mirror forms part) are on the same side of the mirror; convex if the reflecting surface and the center of curvature are on opposite sides of the mirror.

Concave definition: A surface that is concave curves inwards in the middle . | Meaning, pronunciation, translations and examples

concave - Translation to Spanish, pronunciation, and forum discussions

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

Concaved definition, curved like a segment of the interior of a circle or hollow sphere; hollow and curved. See more.

A set in R^d is concave if it does not contain all the line segments connecting any pair of its points. If the set does contain all the line segments, it is called convex.

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Concave Downward is also called Concave or Convex Upward. Concave Upward is also called Convex or Convex Downward

Perhaps when you hear the word "mirror," you think of an ordinary flat surface; this kind is most suitable for gazing at your own reflection because it doesn't...

Previously in Lesson 3, ray diagrams were constructed in order to determine the general location, size, orientation, and type of image formed by concave mirrors.

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In anterior view, the lateral face of the shaft is straight, whereas the medial face is concave.

Translate Concave. See authoritative translations of Concave in Spanish with example sentences and audio pronunciations.

The phenomenon known as concave wheels has changed the wheel game forever and has become the newest trend in aftermarket wheels worldwide. Replacing the classic but outdated look of the typical lips on wheels, concave wheels gives a car the ultimate depth in looks while maintaining all the functionality of the original aftermarket style wheels.

Convex lenses get all the glory. They are used for magnification, in cameras, and in countless other devices. Concave lenses, on the other hand,...

2. (General Physics) 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.

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Our Concave collection effortlessly blends function and style. Constructed of poplar solids and cherry veneers, these tables incorporate a hazelnut wood finish and pewter metal elements.

HELICAL BAR Small Grain Concave. The Helical Bar concave is often the solution when more aggressive threshing is needed. Since the cross bars and wires run diagonally in a helical bar concave, material entering the rotor strikes a helical bar concave at a right angle.

In mathematics, we can have concave shapes and concave functions. In this lesson, through definition and example, we will learn what it means to...

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.

Need antonyms of concave? Here's over 30 fantastic words you can use.

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2. (General Physics) 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.