arranged such that for any two points in the set, a straight line between the two points is contained within the set.
Curved or bowed outward like the outside of a bowl, circle, or sphere.
having no internal angles greater than 180 degrees.
having an epigraph that is a convex set.
A playing card made convex for use in cheating.
A small convex mirror used to cheat by observing other players' cards.
Any convex body or surface.
caused, by natural or unnatural means, to be depressed (lower than the surrounding area) or submerged
Seeming to have fallen deeper back into the face due to tiredness, illness, or old age.