definitions
• synonyms

# convex

[adjective kon-veks, kuh n-; noun kon-veks]
See more synonyms for convex on Thesaurus.com
1. having a surface that is curved or rounded outward.Compare concave(def 1).
2. Mathematics.
1. (of a polygon) having all interior angles less than or equal to 180°.
2. (of a set) having the property that for each pair of points in the set the line joining the points is wholly contained in the set.
noun
1. a convex surface, part, or thing.

## Origin of .css-1fxfie5{font-size:22px;}@media (max-width:768px){.css-1fxfie5{font-size:18px;margin:0 10px 10px 0;word-break:break-all;word-wrap:break-word;-webkit-hyphens:auto;-moz-hyphens:auto;-ms-hyphens:auto;hyphens:auto;line-height:22px;}}convex

1565–75; < Latin convexus equivalent to con- con- + -vexus, perhaps < *wek-sos, derivative of base of vehere to convey, if original sense was “brought together (to a single point)”
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

## Related Words

bulgingarchedbentraisedbiconvexbulgygibbousprotuberant

## Examples from the Web for convex

### Historical Examples

• #### The globe at last became concave, then, after they entered its atmosphere, convex.

The Bluff of the Hawk

Anthony Gilmore

• #### The lamplight was reflected at a single point from its convex surface.

British Dictionary definitions for convex

## convex

1. curving or bulging outwards
2. physics having one or two surfaces curved or ground in the shape of a section of the exterior of a sphere, paraboloid, ellipsoid, etca convex lens
3. maths (of a polygon) containing no interior angle greater than 180°
verb
1. (tr) to make convex
Compare concave

## Word Origin

C16: from Latin convexus vaulted, rounded
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

## Word Origin and History forconvex

1570s, from Middle French convexe, from Latin convexus "vaulted, arched," past participle of convehere "to bring together," from com- "together," or "thoroughly" (see com-) + vehere "to bring" (see vehicle). Possibly from the idea of vaults carried together to meet at the point of a roof. Related: Convexity. Convex lens is from 1822.

Online Etymology Dictionary, © 2010 Douglas Harper

convex in Medicine

## convex

(kŏnvĕks′, kən-vĕks)