concave

listen to the pronunciation of concave
English - English
An element of a curved grid used to separate desirable material from tailings or chaff in mining and harvesting
An indented area on the top of a skateboard, providing a position for foot placement and increasing board strength
curved like the inner surface of a sphere or bowl
The vault of the sky
An indentation running along the base of a surfboard, intended to increase lift
To render [[#Adjective|concave]], or increase the degree of concavity
One of the celestial spheres of the Ptolemaic or geocentric model of the world

Aristotle makes to move to the concave of the Moon. - Thomas Salusbury (1661).

A [[#Adjective|concave]] surface or curve
{a} hollow in the inside, arched
Curved inwards like a cave
A polygon is concave if it has angles of greater than 180 degrees between consecutive sides, eg a dart or arrow-head shaped polygon is concave, but a pentagram is not, because although it is not convex, all of its five angles are less than 180 degrees Similarly, a polyhedron is concave if its dihedral angles are all less than 180 degrees Note that this is not quite the same as nonconvex
Curved downwards, when seen from the top of the pan
Denotes a spherically shaped surface, curved inward
A surface that is concave curves inwards in the middle. a concave stomach. convex. a concave surface is curved inwards in the middle   convex (concavus, from com- ( COM-) + cavus )
noun The inward curve, like a bowl, which a skateboard deck is given to provide more stability for the feet
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 and curved like the inside of a bowl
Surface with center of curvature on the same side as the observer
Hollowed or rounded inward like the inside of a bowl
To make hollow or concave
Curved toward the Observer, as Seen from the Inside
Dished inward, an existing hollow
Describes a surface that is hollowed out like a cave
A term to describe an outline which curves inward Synonymous with incurvate and the opposite of convex and excurvate Suggested that this term only be used to describe basal edges
Sunken in
Bending inward A concave lens or mirror has at least one side that bulges inward A concave lens produces diverging light rays See also reflect, refract, focal length, focal point
Hollow; void of contents
{s} curving inward
Mirror surface that bends outward to expand an image
1 Hollow and curving inward 2 Curving inward like a cave or the inside of a spoon
pressure side of an airfoil
A surface curved like the interior of a circle or sphere
Wood that curves inwardly edge to edge when viewed from the face side, cupping or dished When the curve is pronounced, such material, especially very dry material, tends to split near the middle when fastened at the edges The best bet to save such material is by surface planing; first with the concave side up, then with the other side
I could never remember this one either until I realised 'cave' was like the hollow - which this term describes
To render concave, or increase the degree of concavity
(adj ) Characteristic of curving inward, like the inside of a bowl Contrast with convex
curved inward like the inside of a bowl
A curved sheath or breasting for a revolving cylinder or roll
A hollow; an arched vault; a cavity; a recess
Shaped like the cross section of an upside-down bowl
Curving inwards: like the inside of a small cup
A concave surface or curve
concavous
concave lens
lens which is rounded inward
concave mirror
mirror rounded inward
concave polygon
a polygon such that there is a straight line that cuts it in four or more points
concave polyhedron
a polyhedron some of whose plane sections are concave polygons
concave shape
a shape that curves or bends inward
concavo concave
with both sides concave
convexo-concave
concave on one side and convex on the other
convexo-concave
convex on one side and concave on the other with the convexity being greater than the concavity
concaveness
the state of being concave; concavity
bi-concave lens
double concave lens, lens curved inward like a bowl on both sides
concavely
In a concave manner
concavely
in a concave way; "shaped concavely
concaveness
{i} state of being concave (curving inward like the inside of a bowl, hollow and curved)
concaveness
Hollowness; concavity
concave
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