What is the meaning of Convex?

Curved or bowed outward like the outside of a bowl, circle, or sphere.

having an epigraph that is a convex set.

having no internal angles greater than 180 degrees.

arranged such that for any two points in the set, a straight line between the two points is contained within the set.

Any convex body or surface.

A playing card made convex for use in cheating.

A small convex mirror used to cheat by observing other players' cards.

To form a convex curve or surface; to become convex.

To cause to form a convex curve or surface; to make convex.

To circulate or cause to circulate in a curved path; to cause or exhibit convection.

convex

convex

convex

Source: wiktionary.org