concave

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

con·cave

C0542300 (kŏn-kāv′, kŏn′kāv′)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.

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

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con·cave′ly adv.con·cave′ness n.

concave

(ˈkɒnkeɪv; kɒnˈkeɪv) adj1. curving inwards2. (General Physics) 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. (Mathematics) maths (of a polygon) containing an interior angle greater than 180°4. an obsolete word for hollowvb (tr) to make concave[C15: from Latin concavus arched, from cavus hollow] ˈconcavely adv ˈconcaveness n

con•cave

(adj., v. kɒnˈkeɪv, ˈkɒn keɪv; n. ˈkɒn keɪv)

adj., n., v. -caved, -cav•ing. adj. 1. curved or hollowed inward like the inside of a circle or sphere. Compare convex (def. 1). 2. (of a polygon) having at least one interior angle greater than 180°. n. 3. a concave surface, part, line, or thing. v.t. 4. to make concave. [1375–1425; late Middle English (< Middle French) < Latin concavus hollow. See con-, cave] con•cave′ly, adv. con•cave′ness, n.

con·cave

(kŏn′kāv′) Curved inward, like the inside of a circle or sphere.

concave

Past participle: concaved
Gerund: concaving

Imperative
concave
concave

Present
I concave
you concave
he/she/it concaves
we concave
you concave
they concave

Preterite
I concaved
you concaved
he/she/it concaved
we concaved
you concaved
they concaved

Present Continuous
I am concaving
you are concaving
he/she/it is concaving
we are concaving
you are concaving
they are concaving

Present Perfect
I have concaved
you have concaved
he/she/it has concaved
we have concaved
you have concaved
they have concaved

Past Continuous
I was concaving
you were concaving
he/she/it was concaving
we were concaving
you were concaving
they were concaving

Past Perfect
I had concaved
you had concaved
he/she/it had concaved
we had concaved
you had concaved
they had concaved

Future
I will concave
you will concave
he/she/it will concave
we will concave
you will concave
they will concave

Future Perfect
I will have concaved
you will have concaved
he/she/it will have concaved
we will have concaved
you will have concaved
they will have concaved

Future Continuous
I will be concaving
you will be concaving
he/she/it will be concaving
we will be concaving
you will be concaving
they will be concaving

Present Perfect Continuous
I have been concaving
you have been concaving
he/she/it has been concaving
we have been concaving
you have been concaving
they have been concaving

Future Perfect Continuous
I will have been concaving
you will have been concaving
he/she/it will have been concaving
we will have been concaving
you will have been concaving
they will have been concaving

Past Perfect Continuous
I had been concaving
you had been concaving
he/she/it had been concaving
we had been concaving
you had been concaving
they had been concaving

Conditional
I would concave
you would concave
he/she/it would concave
we would concave
you would concave
they would concave

Past Conditional
I would have concaved
you would have concaved
he/she/it would have concaved
we would have concaved
you would have concaved
they would have concaved

concave

curving inward

Thesaurus

Adj.

1.

concave - curving inwardintrusive - thrusting inward; "an intrusive arm of the sea"bulging, convex - curving or bulging outward

concave

adjective hollow, cupped, depressed, scooped, hollowed, excavated, sunken, indented Remove the flesh from the concave part of the shell.
rounded, curving, bulging, convex, protuberant

concave

adjectiveCurving inward:cavernous, hollow, indented, sunken.

Translations

凹的

concave

(konˈkeiv) adjective (of an object or surface) curved inwards. Spoons are concave. 凹的 凹的conˈcavity (-ˈkӕ-) noun 凹面，凹處 凹面