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1. Oxford Dictionary

   synodic period

   • n.
     the time between successive conjunctions of a planet with the sun

   • noun: synodic period, plural noun: synodic periods

2. • 釋義

   n.

   名詞

   • 1. the time between successive conjunctions of a planet with the sun the synodic period of Venus
3. • 更多解釋

   synodic period

   • IPA[səˈnädik ˈpirēəd]

   • n.
     the time between successive conjunctions of a planet with the sun: the synodic period of Venus

   Oxford American Dictionary