con·​vex | \ kän-ˈveks How to pronounce convex (audio) ; ˈkän-ˌveks, kən-ˈveks How to pronounce convex (audio) \

Definition of convex

1a : curved or rounded outward like the exterior of a sphere or circle
b : being a continuous function or part of a continuous function with the property that a line joining any two points on its graph lies on or above the graph
2a of a set of points : containing all points in a line joining any two constituent points
b of a geometric figure : comprising a convex set when combined with its interior a convex polygon

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Examples of convex in a Sentence

Recent Examples on the Web The experience was enhanced by the sound of an acoustic guitar and followed by the celestial tones of an instrument called the Hang, a convex steel drum played with the hands or soft mallets. Dallas News, "Costa Rican ecolodge is a sanctuary that reminds us why we travel in the first place," 20 Apr. 2020 The inventorying reduces to a finite, though still formidable, task when mathematicians consider only convex polygons: simple, flat-edged shapes like triangles and rectangles whose angles all bend in the same direction. Quanta Magazine, "Pentagon Tiling Proof Solves Century-Old Math Problem," 11 July 2017 The original boathouse and shoreline observation tower are still standing and look straight out of early-’60s sci-fi: metal structures with convex round windows that were meant to evoke a boat’s (or perhaps a spacecraft’s) portholes. Ezra Dyer, Popular Mechanics, "Lake X: Mercury Marine's Secret Boat Testing Site," 27 Dec. 2018 It was built from 756 prefabricated convex oval concrete modules, which give the building its perfectly gridded facade. Liz Stinson, Curbed, "This Brutalist masterpiece is now a gorgeous coworking space," 12 Dec. 2018 Its legs had been shortened, the shell was gouged and dirty, convex Perspex windows had been removed, and the interior had been flooded by rainwater and slathered in plaster. Eve M. Kahn, New York Times, "No, Your Furniture Shouldn’t Drip or Burst," 2 Mar. 2018 Also, the blade has a slightly convex shape to reduce friction, meaning the knife won’t get stuck mid-performance. Elaheh Nozari, Bon Appetit, "This Is the Serrated Knife to End All Serrated Knives," 26 Feb. 2018 Clerics who were reading scholarly manuscripts started using convex pieces of clear glass to magnify the text. Joe Bargmann, Popular Mechanics, "What the Hummingbird Can Tell Us About Innovation," 15 Oct. 2014 Here, the classic Vans waffle sole design is echoed in the Ultra Range by essentially inverting it, creating a sole with convex rubber ridges that give you additional grip on rugged terrain. Jake Woolf, GQ, "These New Vans Sneakers Are The Summer Kicks You Can Where Anywhere," 23 July 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'convex.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of convex

1571, in the meaning defined at sense 1a

History and Etymology for convex

Middle French or Latin; Middle French convexe, from Latin convexus vaulted, concave, convex, from com- + -vexus; perhaps akin to Latin vehere to carry — more at way

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Time Traveler for convex

Time Traveler

The first known use of convex was in 1571

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Cite this Entry

“Convex.” Dictionary, Merriam-Webster, Accessed 8 Jul. 2020.

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More Definitions for convex


How to pronounce convex (audio) How to pronounce convex (audio)

English Language Learners Definition of convex

: having a shape like the outside of a bowl : curving outward


con·​vex | \ kän-ˈveks How to pronounce convex (audio) , ˈkän-ˌveks \

Kids Definition of convex

: rounded like the outside of a ball or circle


con·​vex | \ kän-ˈveks; ˈkän-ˌ How to pronounce convex (audio) , kən-ˈ How to pronounce convex (audio) \

Medical Definition of convex

: curved or rounded like the exterior of a sphere or circle convex lenses are used to correct for farsightedness

Other Words from convex

convexity \ kən-​ˈvek-​sət-​ē, kän-​ How to pronounce convexity (audio) \ noun, plural convexities

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More from Merriam-Webster on convex

Thesaurus: All synonyms and antonyms for convex

Rhyming Dictionary: Words that rhyme with convex

Spanish Central: Translation of convex

Nglish: Translation of convex for Spanish Speakers

Britannica English: Translation of convex for Arabic Speakers

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