Definition of curvilinear adjective from the Oxford Advanced Learner's Dictionary

 

curvilinear

 adjective
adjective
BrE BrE//ˌkɜːvɪˈlɪniə(r)//
 
; NAmE NAmE//ˌkɜːrvɪˈlɪniər//
 
(formal)
 
jump to other results
consisting of a curved line or lines Word Origin early 18th cent.: from Latin curvus ‘bent, curved’, on the pattern of rectilinear.
See the Oxford Advanced American Dictionary entry: curvilinear