1. concave - Noun
2. concave - Adjective
3. concave - Verb
Hollow and curved or rounded; vaulted; -- said of the interior of a curved surface or line, as of the curve of the of the inner surface of an eggshell, in opposition to convex; as, a concave mirror; the concave arch of the sky.
Hollow; void of contents.
A hollow; an arched vault; a cavity; a recess.
A curved sheath or breasting for a revolving cylinder or roll.
To make hollow or concave.
Source: Webster's dictionaryA concave tip well is said to help prevent bridging of closely spaced leads; different shapes are recommended to correct bridging that has occurred. Source: Internet
A concave bipyramid has a concave interior polygon. : The face-transitive regular bipyramids are the dual polyhedra of the uniform prisms and will generally have isosceles triangle faces. Source: Internet
A convex plus a concave lens (f 1 > 0 > f 2 ) produces a positive magnification and the image is upright. Source: Internet
African elephants have larger ears, a concave back, more wrinkled skin, a sloping abdomen and two finger-like extensions at the tip of the trunk. Source: Internet
A lens with one convex and one concave side is convex-concave or meniscus. Source: Internet
As the arrangement is dragged forward, the sharp edge of the disc cuts the soil, and the concave surface of the rotating disc lifts and throws the soil to the side. Source: Internet