equiconvex
/ˌɛkwɪkɒnˈvɛks/Definitions
1. adjective
Having two convex surfaces, one facing in each direction.
“The equiconvex shape of the new building design has gained praise from architects worldwide.”
2. noun
A shape with two convex surfaces, one facing in each direction.
“The artist created a sculpture in the form of an equiconvex shape, which now adorns the city square.”