mean spheroid

noun

: an imaginary spheroid which is commonly assumed to be an ellipsoid of revolution but may have three unequal axes, which coincides most nearly with the actual figure of the earth at the plane of sea level, and to which trigonometrical surveys are referred

Word History

First Known Use

1694, in the meaning defined above

Time Traveler
The first known use of mean spheroid was in 1694

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Cite this Entry

“Mean spheroid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mean%20spheroid. Accessed 27 Nov. 2022.

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