JMdict: 2230520

歳差 【さいさ】

  1. [n] (phenomenon of) precession of the equinoxes
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Kanji in this word:

Kanji Meanings On Readings Kun Readings Grade
歳 Year-end, Age, Occasion, Opportunity サイ, セイ とし, とせ, よわい
差 Distinction, Difference, Variation, Discrepancy, Margin, Balance サ さ.す, さ.し 4