convex

US /ˈkɑːn.veks/
UK /ˈkɑːn.veks/
"convex" picture
1.

محدب

having an outline or surface curved like the exterior of a circle or sphere

:
The lens of the magnifying glass is convex.
عدسة العدسة المكبرة محدبة.
The surface of the mirror was slightly convex.
كان سطح المرآة محدبًا قليلاً.