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periherm

From Wiktionary, the free dictionary

English

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Etymology

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From peri- +‎ Ἑρμῆς (Hermês, “Mercury”).

Noun

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periherm (plural periherms)

  1. (astronomy) In an orbit around the planet Mercury, the point that is closest to Mercury.

Antonyms

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  • (antonym(s) of “a point in an orbit around the planet Mercury”): apoherm

See also

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References

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  • BepiColombo Mission [1]
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