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left to right: biconcave,
plano-concave, and
concavo-convex lenses


 (kŏn-kāv′, kŏn′kāv′)
Curved like the inner surface of a sphere.
A concave surface, structure, or line.
tr.v. con·caved, con·cav·ing, con·caves
To make concave.

[Middle English, from Latin concavus : com-, intensive pref.; see com- + cavus, hollow; see keuə- in Indo-European roots.]

con·cave′ly adv.
con·cave′ness n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adv.1.concavely - in a concave way; "shaped concavely"
convexly - in a convex way; "bulging out convexly"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
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A rotational slip is a landslide in which the surface of rupture is curved concavely (Hutchinson 1988).
The curve of Soay sheep curls concavely downward during early adulthood before rising again to a rounded hilltop in old age.
Generally the CSD plots for the amphibole and plagioclase crystals are not linear but curve concavely upwards (Figs.
A single rotational slide or slump is a "more or less rotational movement, about an axis that is parallel to the slope contours, involving shear displacement (sliding) along a concavely upward-curving failure surface, which is visible or may reasonably be inferred" (Varnes, 1978).
With the exception of a small number of outliers, it appears that TCAR is concavely related to G Index, while ACAR is close to linearly related.