convex

[ adjective kon-veks, kuhn-; noun kon-veks ]

adjective

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.

convex

/ ˈkɒnvɛks; kɒnˈvɛks /

adjective

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°

verb

1. tr to make convex

convex

/ kŏn′vĕks′ /

1. Curving outward, like the outer boundary of a circle or sphere.

Derived Forms

• ˈconvexly, adverb

Other Words From

• con·vexly con·vex·ed·ly [k, uh, n-, vek, -sid-lee], adverb
• con·vexed·ness noun
• subcon·vex adjective

Word History and Origins

Origin of convex¹

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)”

Word History and Origins

Origin of convex¹

C16: from Latin convexus vaulted, rounded

Example Sentences

A convex lens is fixated on a slanted ceiling emanating a faint amount of soft white light.

From The Daily Beast

It is sometimes indented, with its convex side in contact with the periphery of the cell.

From Project Gutenberg

Ellis's patent boot studs to save the sole, and the Euknemida, or concave-convex fastening springs, are the latest novelties.

From Project Gutenberg

From his waistcoat pocket he took a little silver convex mirror and surveyed himself critically therein.

From Project Gutenberg

This insect is much less in size than the former, and is more convex.

From Project Gutenberg

The body is very convex:, having the thorax as wide as the abdomen, subquadrate, with very convex sides.

From Project Gutenberg