perihelion

noun peri·he·lion \ ˌper-ə-ˈhēl-yən \

Definition of perihelion

plural perihelia play \ˌper-ə-ˈhēl-yə\
: the point nearest to the sun in the path of an orbiting celestial body (such as a planet) — compare aphelion

perihelial

play \ˌper-ə-ˈhēl-yəl\ adjective

Recent Examples of perihelion from the Web

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Origin and Etymology of perihelion

New Latin, from peri- + Greek hēlios sun — more at solar


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