concave
[ adjective, verb kon-keyv, kon-keyv; noun kon-keyv ]
/ adjective, verb kɒnˈkeɪv, ˈkɒn keɪv; noun ˈkɒn keɪv /
adjective
curved like a segment of the interior of a circle or hollow sphere; hollow and curved.
Compare convex(def 1).
Geometry.
(of a polygon) having at least one interior angle greater than 180°.
Obsolete.
hollow.
noun
a concave surface, part, line, or thing.
Machinery.
a concave piece, as one against which a drum rotates.
verb (used with object), con·caved, con·cav·ing.
to make concave.
Origin of concave
OTHER WORDS FROM concave
Words nearby concave
Example sentences from the Web for concave
British Dictionary definitions for concave
concave
/ (ˈkɒnkeɪv, kɒnˈkeɪv) /
adjective
curving inwards
physics
having one or two surfaces curved or ground in the shape of a section of the interior of a sphere, paraboloid, etc
a concave lens
maths
(of a polygon) containing an interior angle greater than 180°
an obsolete word for hollow
verb
(tr)
to make concave
Compare
convex
Derived forms of concave
concavely, adverb concaveness, nounWord Origin for concave
C15: from Latin
concavus arched, from
cavus hollow
Medical definitions for concave
concave
[ kŏn-kāv′, kŏn′kāv′ ]
adj.
Curved like the inner surface of a sphere.
n.
A concave surface, structure, or line.
Scientific definitions for concave
concave
[ kŏn′kāv′ ]
Curved inward, like the inside of a circle or sphere.