ellipsoid

play
noun el·lip·soid \i-ˈlip-ˌsȯid, e-\

Definition of ellipsoid

  1. :  a surface all plane sections of which are ellipses or circles

ellipsoidal

play \i-ˌlip-ˈsȯi-dəl, (ˌ)e-\ or less commonly

ellipsoid

adjective

1721

First Known Use of ellipsoid

1721


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