- The definition of convex is curving outwards like the edge of a circle.
An example of convex is the shape of the lens in eyeglasses.

## convex

adjective

curving outward like the surface of a sphere

Origin of convex

Classical Latin*convexus,*vaulted, arched, past participle of

*convehere,*to bring together ; from

*com-,*together +

*vehere,*to bring: see way

noun

a convex surface, line, object, etc.

*Related Forms:*

- convexly
adverb

- convexness
noun

## convex

adjective

Having a surface or boundary that curves or bulges outward, as the exterior of a sphere.

Origin of convex

Latin*convexus*; see

*wegh-*in Indo-European roots.

*Related Forms:*

**con′vex′ly**adverb

**convex**

left to right: biconvex,

plano-convex, and

convexo-concave lenses

## convex

Adjective

(*comparative* more convex, *superlative* most convex)

- curved or bowed outward like the outside of a bowl or sphere or circle
- (mathematics, not comparable, of a set) arranged such that for any two points in the set, a straight line between the two points is contained within the set.
- (functional analysis, not comparable, of a real-valued function on the reals) having an epigraph which is a convex set.

Antonyms

Origin

From Middle French *convexe*, from Latin *convexus* (“arched”).