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 ?
Fitting the cylinder with filler plates was found to have a positive effect on wheat grain separation through the concave and also to reduce grain damage [6].
The hypothesis in the present research was that covering the spaces between the cylinder rasp bars has a positive effect on corn grain damage during threshing (the percentage of damaged grain decreases) and on grain separation through the concave (the percentage of threshed grains passed onto the straw walkers decreases).
Beaters had significant effect on field emergence (FE) only in Experiment I, while beaters and concaves had no significant effects on all investigated traits in both Experiment I and II (Table 5).
Table 3: ANOVA results and significance of F values for germination speed (GS), germination power (GP), electrical conductivity (EC) of seed leakage and water absorption rate (WAR) of chickpea seeds threshed by different beaters and concaves
We have been working to improve the concaves to reduce the number of rows in order to lower downtime," Papjewski said.
We have mechanical fasteners that hold concaves to the top shell," Novak said.
Because they are electronically controlled from the cab, the concaves can be quickly adjusted between crops.
Concaves with 6 mm slots are factory installed as standard.
And we have teamed up with Concave to offer one lucky reader the chance to win a pair of Concave boots signed by the footballing genius.
Boasting a new patented technology, Concave is set to take football to the next level and combines the most effective ever sweet spot with aunique system for protecting the metatarsal.
To celebrate the Concave launch, People Sport has FIVE PAIRS to give away in a stunning competition.
Concave boast a new patented technology that combines a bigger "sweet spot" with unique metatarsal protection.