Definition of ellipse noun from the Oxford Advanced Learner's Dictionary

 

ellipse

 noun
noun
BrE BrE//ɪˈlɪps//
 
; NAmE NAmE//ɪˈlɪps//
 
(specialist)
 
jump to other results
a regular oval shape, like a circle that has been squeezed on two sides Word Origin late 17th cent.: via French from Latin ellipsis, from Greek elleipsis, from elleipein ‘leave out’.
See the Oxford Advanced American Dictionary entry: ellipse