# sub convex

## con·vex

1.
having a surface that is curved or rounded outward. Compare concave ( def 1 ).
2.
Mathematics.
a.
(of a polygon) having all interior angles less than or equal to 180°.
b.
(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
3.
a convex surface, part, or thing.

Origin:
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)”

con·vex·ed·ness, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Sub convex is always a great word to know.
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 a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
 an extraordinary or unusual thing, person, or event; an exceptional example or instance.
Collins
World English Dictionary
 convex (ˈkɒnvɛks, kɒnˈvɛks) —adj 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, etc: a convex lens 3. maths (of a polygon) containing no interior angle greater than 180° —vb 4. (tr) to make convex [C16: from Latin convexus vaulted, rounded] 'convexly —adv

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

convex
1570s, from M.Fr. convexe, from L. convexus "vaulted, arched," pp. of convehere "to bring together," from com- "together" + vehere "to bring" (see vehicle). Possibly from the idea of vaults carried together to meet at the point of a roof. Related: Convexity (c.1600). Convex lens is from 1822.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

convex con·vex (kŏn'věks', kən-věks')
Having a surface or boundary that curves or bulges outward, as the exterior of a sphere.

con·vex'i·ty n.

The American Heritage® Stedman's Medical Dictionary