concavity

(kän kavə tē, kən-)

noun

  1. the quality or condition of being concave
  2. pl. concavities a concave surface, line, etc.

Origin: ME & OFr concavite < LL concavitas

See concavity in American Heritage Dictionary 4

noun pl. con·cav·i·ties
  1. The state of being curved like the inner surface of a sphere.
  2. A surface or structure configured in such a curve: “a perfect concavity of white sand lined with palm . . . trees” (Islands).

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