Apohermion

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Apoapsis around Mercury. no-plural

    "MESSENGER is in an orbit of 80° inclination, with apohermion occurring in the southern hemisphere at 7.1 R_M (R_M is the radius of Mercury) and perihermion in the northern hemisphere at 1.1 R_M, and the orbital period is 12h."

Example

More examples

"MESSENGER is in an orbit of 80° inclination, with apohermion occurring in the southern hemisphere at 7.1 R_M (R_M is the radius of Mercury) and perihermion in the northern hemisphere at 1.1 R_M, and the orbital period is 12h."

Etymology

From apo- + hermeo- + -ion.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.