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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.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adv.1.concavely - in a concave way; "shaped concavely"
convexly - in a convex way; "bulging out convexly"
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References in periodicals archive ?
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.
The CI value of Icariside II and Icaritin was smaller than 1, and therefore corresponds to the isobole that is concavely curved toward the zero point (Fig.