concave

[ adjective, verb kon-keyv, kon-keyv; noun kon-keyv ]

/ adjective, verb kɒnˈkeɪv, ˈkɒn keɪv; noun ˈkɒn keɪv /

SEE SYNONYMS FOR concave ON THESAURUS.COM

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

1375–1425; late Middle English (<Middle French ) <Latin concavus, hollow. See con-, cave

OTHER WORDS FROM concave

con·cave·ly, adverbcon·cave·ness, nounsub·con·cave, adjectivesub·con·cave·ly, adverb

sub·con·cave·ness, noun

Words nearby concave

conc., concanavalin A, concatenate, concatenation, Concato's disease, concave, concave lens, concavity, concavo-concave, concavo-concave lens, concavo-convex

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for concave

A concave blade will easily make big cuts through softer materials.
Three Questions to Ask Yourself Before Buying a Knife|Wes Siler|September 3, 2020|Outside Online
This wireless keyboard has concave keys to snugly fit your fingertips, creating an ultra-comfortable typing experience.
Serious upgrades for your computer keyboard|PopSci Commerce Team|September 2, 2020|Popular Science
Shell flat, funnel-shaped, nearly discoidal, with concave outlines.
Report on the Radiolaria Collected by H.M.S. Challenger During the Years 1873-1876, Second Part: Subclass Osculosa; Index|Ernst Haeckel
When a radial face or surface is convex, it is said to be rounding or round, and when it is concave it is said to be hollow.
Modern Machine-Shop Practice, Volumes I and II|Joshua Rose

Lanceolate and concave on one side at the base, and on the other at the apex.
An Introduction to Entomology: Vol. IV (of 4)|William Kirby
Or, thirdly, straight in the upper part, and concave in the under.
A Treatise on Painting|Leonardo Da Vinci
This ornament, when found, lay on the breast-bone of a skeleton, with the concave or ornamented side uppermost.
Art in Shell of the Ancient Americans|William H. Holmes

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, etca 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, adverbconcaveness, noun

Word Origin for concave

C15: from Latin concavus arched, from cavus hollow

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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.

单词	concave
释义	concave [ adjective, verb kon-keyv, kon-keyv; noun kon-keyv ] / adjective, verb kɒnˈkeɪv, ˈkɒn keɪv; noun ˈkɒn keɪv / SEE SYNONYMS FOR concave ON THESAURUS.COM 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 1375–1425; late Middle English (<Middle French ) <Latin concavus, hollow. See con-, cave OTHER WORDS FROM concave con·cave·ly, adverbcon·cave·ness, nounsub·con·cave, adjectivesub·con·cave·ly, adverb sub·con·cave·ness, noun Words nearby concave conc., concanavalin A, concatenate, concatenation, Concato's disease, concave, concave lens, concavity, concavo-concave, concavo-concave lens, concavo-convex Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for concave A concave blade will easily make big cuts through softer materials. Three Questions to Ask Yourself Before Buying a Knife\|Wes Siler\|September 3, 2020\|Outside Online This wireless keyboard has concave keys to snugly fit your fingertips, creating an ultra-comfortable typing experience. Serious upgrades for your computer keyboard\|PopSci Commerce Team\|September 2, 2020\|Popular Science Shell flat, funnel-shaped, nearly discoidal, with concave outlines. Report on the Radiolaria Collected by H.M.S. Challenger During the Years 1873-1876, Second Part: Subclass Osculosa; Index\|Ernst Haeckel When a radial face or surface is convex, it is said to be rounding or round, and when it is concave it is said to be hollow. Modern Machine-Shop Practice, Volumes I and II\|Joshua Rose Lanceolate and concave on one side at the base, and on the other at the apex. An Introduction to Entomology: Vol. IV (of 4)\|William Kirby Or, thirdly, straight in the upper part, and concave in the under. A Treatise on Painting\|Leonardo Da Vinci This ornament, when found, lay on the breast-bone of a skeleton, with the concave or ornamented side uppermost. Art in Shell of the Ancient Americans\|William H. Holmes 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, etca 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, adverbconcaveness, noun Word Origin for concave C15: from Latin concavus arched, from cavus hollow Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Words related to concave dipped, hollow, round, rounded, sinking, sunken, indented, biconcave, cupped, dented, dimpled, excavated, hollowed, incurvate, incurved, sagging, scooped 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. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for concave concave [ kŏn′kāv′ ] Curved inward, like the inside of a circle or sphere. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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concave

adjective

noun

verb (used with object), con·caved, con·cav·ing.

Origin of concave

OTHER WORDS FROM concave

Words nearby concave

Example sentences from the Web for concave

British Dictionary definitions for concave

adjective

verb

Derived forms of concave

Word Origin for concave

Words related to concave

Medical definitions for concave

adj.

n.

Scientific definitions for concave