dec·ile /ˈdɛˌsaɪl, səl/
  十分位數
  Dec·il, Dec·ile  n.  Astrol. An aspect or position of two planets, when they are distant from each other a tenth part of the zodiac, or 36°.
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  decile
       n : (statistics) any of nine points that divided a distribution
           of ranked scores into equal intervals where each interval
           contains one-tenth of the scores