curvilinear
/kərˈvɪljərɪnər/Definitions
1. adjective
having a curved or sinuous line or shape; curved in form or outline
“The curvilinear design of the new stadium’s roof made it a standout architectural feature.”
2. noun
a curved or curved line or shape, especially in mathematics or architecture
“The artist’s use of curvilinear forms in her sculpture added a new level of depth and complexity to the piece.”