concave
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.
a concave surface, part, line, or thing.
Machinery. a concave piece, as one against which a drum rotates.
to make concave.
Origin of concave
1Other words from concave
- con·cave·ly, adverb
- con·cave·ness, noun
- sub·con·cave, adjective
- sub·con·cave·ly, adverb
- sub·con·cave·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use concave in a sentence
The world below looked like a vast, shallow bowl, the sides concaving upwards around him to the horizon.
Hoof and Claw | Charles G. D. RobertsAs a rule, strongly "cupped" soles require no concaving (hind hoofs, narrow fore hoofs).
Special Report on Diseases of the Horse | United States Department of Agriculture
British Dictionary definitions for concave
/ (ˈkɒnkeɪv, kɒnˈkeɪv) /
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
(tr) to make concave
Origin of concave
1- Compare convex
Derived forms of concave
- concavely, adverb
- concaveness, noun
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
Scientific definitions for 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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