Concave



[adjective, verb kon-keyv, kon-keyv; noun kon-keyv] /adjective, verb kɒnˈkeɪv, ˈkɒn keɪv; noun ˈkɒn keɪv/

adjective
1.
curved like a segment of the interior of a circle or sphere; and curved.
Compare (def 1).
2.
Geometry. (of a polygon) having at least one interior angle greater than 180°.
3.
Obsolete. .
noun
4.
a concave surface, part, line, or thing.
5.
Machinery. a concave piece, as one against which a drum rotates.
verb (used with object), concaved, concaving.
6.
to make concave.
/ˈkɒnkeɪv; kɒnˈkeɪv/
adjective
1.
curving inwards
2.
(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
3.
(maths) (of a polygon) containing an interior angle greater than 180°
4.
an obsolete word for hollow
verb
5.
(transitive) to make concave
adj.

early 15c., from Old French concave (14c.) or directly from Latin concavus “hollow, arched, vaulted, curved,” from com-, intensive prefix (see com-), + cavus “hollow” (see cave (n.)).

concave con·cave (kŏn-kāv’, kŏn’kāv’)
adj.
Curved like the inner surface of a sphere. n.
A concave surface, structure, or line.
concave
(kŏn’kāv’)
Curved inward, like the inside of a circle or sphere.

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  • Concaved

    [adjective, verb kon-keyv, kon-keyv; noun kon-keyv] /adjective, verb kɒnˈkeɪv, ˈkɒn keɪv; noun ˈkɒn keɪv/ adjective 1. curved like a segment of the interior of a circle or sphere; and curved. Compare (def 1). 2. Geometry. (of a polygon) having at least one interior angle greater than 180°. 3. Obsolete. . noun 4. a concave surface, […]

  • Concave lens

    concave lens n. A lens having at least one surface curved like the inner surface of a sphere.



  • Concaving

    [adjective, verb kon-keyv, kon-keyv; noun kon-keyv] /adjective, verb kɒnˈkeɪv, ˈkɒn keɪv; noun ˈkɒn keɪv/ adjective 1. curved like a segment of the interior of a circle or sphere; and curved. Compare (def 1). 2. Geometry. (of a polygon) having at least one interior angle greater than 180°. 3. Obsolete. . noun 4. a concave surface, […]

  • Concavity

    [kon-kav-i-tee] /kɒnˈkæv ɪ ti/ noun, plural concavities for 2. 1. the state or quality of being . 2. a surface or thing; cavity. /kɒnˈkævɪtɪ/ noun (pl) -ties 1. the state or quality of being concave 2. a concave surface or thing; cavity n. c.1400, from Old French concavité “hollow, concavity” (14c.) or directly from Latin […]



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