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SINCE 1828
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antapex

noun
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ant·​apex
plural antapexes or antapices

Definition of antapex

: the point of the celestial sphere from which the solar system is moving — compare solar apex

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First Known Use of antapex

1890, in the meaning defined above

History and Etymology for antapex

anti- entry 1 + apex

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Time Traveler for antapex

Time Traveler

The first known use of antapex was in 1890

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Cite this Entry

“Antapex.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/antapex. Accessed 28 Oct. 2020.

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