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perihelion

per·i·he·li·on

perihelion

 
pronunciation:
pe rih hi li n
features:
Word Parts
part of speech: noun
inflections: perihelia
definition: the point in the orbit of a planet or other body at which it comes closest to the sun. (Cf. aphelion.)
derivation: perihelial (adj.)
Word Parts
The word perihelion contains the following parts:
heli, helio Greek root that means sun
synonyms:
sol1