concave

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concave

1. Physics having one or two surfaces curved or ground in the shape of a section of the interior of a sphere, paraboloid, etc.
2. Maths (of a polygon) containing an interior angle greater than 180°

concave

(kong-kayv , kong -kayv) Curving inward. A concave mirror converges light. A biconcave or planoconcave lens, thinner in the middle than at the edges, has a diverging action.

Concave

Forms that are curved like the inner surface of a hollow sphere or circular arc.

concave

[′kän‚kāv]
(science and technology)
Having a curved form which bulges inward resembling the interior of a sphere or cylinder or a section of these bodies.
References in periodicals archive ?
The earliest examples at this site were solid disks with perfectly flat faces and slight concavity to the sides.
A] (proof of concavity is very similar to the one in the appendix).
Kochiana new genus was monophyletic in all analyses regardless of weighting scheme or concavity used.
Parameter q influences the degree of concavity at the areas near the smallest radius.
of Hull and adds chapters on phase transitions and thermodynamic equilibrium and stability, the mathematical property of the concavity of the entropy, and black hole thermodynamics.
The imaging studies revealed a large soft tissue mass on the right side of the thoracolumbar spine in the concavity of his scoliosis.
At surgery, the patient was found to have a concavity of the right anterior and middle portions of the middle turbinate (figure, B).
One side of a dark object bears a shallow concavity covered by shallow parallel lines (Figure 9).
In this particular configuration, the skeleton did not reveal two, but only one concavity (see Fig.
In [5] Erdem and Kalantarov has applied the modified concavity method to the following equation
Is photography the portrait of a concavity, of a lack, of an absence?
A paper-cut symbol in the center of the candelabrum allows a candle to burn, with the flame being a floral bud and the hot wax dripping down into the concavity of the holder, which also colors the paper-cut form.