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geoid

noun
ge·​oid | \ ˈjÄ“-ˌȯid How to pronounce geoid (audio) \

Definition of geoid

: the surface within or around the earth that is everywhere normal to the direction of gravity and coincides with mean sea level in the oceans
Other Words from geoid Example Sentences Learn More about geoid

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Other Words from geoid

geoidal \ jÄ“-​ˈȯi-​dᵊl How to pronounce geoidal (audio) \ adjective

Examples of geoid in a Sentence

Recent Examples on the Web

 The newest update, however, will use a new mean sea level reference point known as a geoid. — Keith Matheny, Detroit Free Press, "Great Lakes still impacted by Ice Age phenomenon," 2 Mar. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'geoid.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of geoid

1881, in the meaning defined above

History and Etymology for geoid

German, from Greek geoeidēs earthlike, from gē

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More from Merriam-Webster on geoid

Britannica.com: Encyclopedia article about geoid

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