adj.
Curved like the inner surface of a sphere.
n.
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.
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