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Meaning of perihelian in English:

perihelian

Pronunciation /ˌpɛrɪˈhiːlɪən/

adjective

rare Astronomy

  • Of or relating to the perihelion of a planet, comet, etc.

Origin

Late 17th century; earliest use found in William Leybourn (1626–1716). From periheli- + -an.