convex
US /ˈkɑːn.veks/
UK /ˈkɑːn.veks/

1.
볼록한
having an outline or surface curved like the exterior of a circle or sphere
:
•
The lens of the magnifying glass is convex.
돋보기 렌즈는 볼록하다.
•
The surface of the mirror was slightly convex.
거울 표면은 약간 볼록했다.