Concave

From DmWiki

Opposite of convex

1 : hollowed or rounded inward like the inside of a bowl
2 : arched in : curving in

-- used of the side of a curve or surface on which neighboring normals to the curve or surface converge and on which lies the chord joining two neighboring points of the curve or surface

3: a concave line or surface.

This article is a stub. You can help improve the article by expanding it.