Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

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-\ also

ellipsoid

adjective


1721

First Known Use of ellipsoid

1721


Learn More about ellipsoid


Seen and Heard

What made you want to look up ellipsoid? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a secret group of plotters

Get Word of the Day daily email!