Definitions
from The American Heritage® Dictionary of the English Language, 4th Edition
 adj. Having a surface or boundary that curves or bulges outward, as the exterior of a sphere.
from Wiktionary, Creative Commons Attribution/ShareAlike License
 adj. curved or bowed outward like the outside of a bowl or sphere or circle
 adj. (Of a set of points) such that for any two points in the set, every point between those two points is also in the set
 adj. (of a realvalued function on the reals) such that the value at any point, is no larger than the interpolated value thereat, based on the values at any two points between which the first point is contained
 n. Any convex body or surface.
from the GNU version of the Collaborative International Dictionary of English
 adj. Rising or swelling into a spherical or rounded form; regularly protuberant or bulging;  said of a spherical surface or curved line when viewed from without, in opposition to concave.
 n. A convex body or surface.
from The Century Dictionary and Cyclopedia
 Curved, as a line or surface, in the manner of a circle or sphere when viewed from some point without it; curved away from the point of view; hence, bounded by such a line or surface: as, a convex mirror.
 Specifically In zöol. and anatomy, elevated and regularly rounded; forming a segment of a sphere, or nearly so: distinguished from gibbous, which is applied to a less regular elevation.
 n. [⟨ L. convexum, prop. neut. of convexus, adj.: see above.] A convex body or surface.
 In geometry, having no reëntrant angle.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
 adj. curving or bulging outward
Etymologies
Examples

The bowed t bar also called a convex t bar is usually found either in the center or the top of the stem.

Such lenses are called convex or converging lenses.

Those are tools useful in the field of convex processing, and more precisely to solve a problem called convex feasbility ...

Emphasis is on route planning and recognizing dangerous terrain features such as convex rolls, gullies and windloaded slopes.

Leipsic, Essling, and Brienne he used a kind of convex order very like

Got a good one on the last quiz ... the correct answer to the question was "convex" (the shape) the student was apparently thinking "concave" (a related shape) « Reply #454 on: Yesterday at 02: 16: 41 PM »

As illustrated in the chart below, data going back to 1970 shows that the US Dollar Index (an average of the greenback's value against six of its top counterparts) is higher when US Gross Domestic Product growth rates are either sharply above or below the average of other G7 nations; it is lower when the difference in growth rates declines, revealing a "convex" relationship or a

Instead of watching a show, I was entranced by my distorted reflection in the convex black screen.

On the left side, the roof swept up to its highest point, its convex outline suggesting a tidal mass about to crash down on shore.

It began with vast drops of rain, which were soon succeeded by round hail, and then by convex pieces of ice, which measured three inches in girth.
Comments
Log in or sign up to get involved in the conversation. It's quick and easy.