concave

Definitions

General Science

  • adjective curved inwards like the inner surface of a sphere
  • adjective referring to a polygon with an interior angle greater than 180°

Agriculture

Economics

  • Said of a curve that bulges away from some reference point, usually the horizontal axis or the origin of a diagram. More formally, a curve is concave from below (or concave to something below it) if all straight lines connecting points on it lie on or below it. Contrasts with convex.

Electronics

  • Having a surface, side, or boundary that curves inward, such as the inner surface of a sphere. This contrasts with convex, which has a surface or boundary that curves outward.

Medical

  • adjective curving towards the inside
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