oblateness

from WordNet (r) 3.0 (2006)

oblateness
    n 1: the property possessed by a round shape that is flattened
         at the poles; "the oblateness of the planet" [syn:
         {oblateness}, {ellipticity}]

from The Collaborative International Dictionary of English v.0.48

Oblateness \Ob*late"ness\, n.
   The quality or state of being oblate.
   [1913 Webster]

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