What does concave mean?

Looking for the meaning or definition of the word concave? Here's what it means.

Adjective curved like the inner surface of a sphere or bowl (polygon) not convex; having at least one internal angle greater than 180 degrees.. (real-valued) satisfying the property that all segments connecting two points on the function's graph lie below the function. hollow; empty Noun A concave surface or curve. The vault of the sky. One of the celestial spheres of the Ptolemaic or geocentric model of the world. (manufacturing) An element of a curved grid used to separate desirable material from tailings or chaff in mining and harvesting. (surfing) An indentation running along the base of a surfboard, intended to increase lift. (skateboarding) An indented area on the top of a skateboard, providing a position for foot placement and increasing board strength. Verb To render concave, or increase the degree of concavity. Find more words! 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What is the opposite of concave? Sentences with the word concave Words that rhyme with concave What is the past tense of concave? What is the plural of concave? What is the adverb for concave? What is the adjective for concave? What is the noun for concave? Translations for concave Nearby Definitions concavations concavation concauses concause concatenators concatenator concaved concave function concave functions concavely concaveness concaves 7-letter Words Starting With c co con conc conca concav