concave
IPA: kɑnkˈeɪv
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.
- (gambling) A playing card made concave for use in cheating.
verb
- To render concave, or increase the degree of concavity.
adjective
- Curved like the inner surface of a sphere or bowl.
- (geometry, not comparable, of a polygon) Not convex; having at least one internal angle greater than 180 degrees.
- (functional analysis, not comparable, of a real-valued function on the reals) Satisfying the property that all segments connecting two points on the function's graph lie below the function.
- Hollow; empty.
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Examples of "concave" in Sentences
No Sentences Found for concave
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