decisive advantage 意味

• 決定的｛けっていてき｝な優位性｛ゆういせい｝
  

例文

1. this gave the decisive advantage to the tanba clan , and the clan thereafter occupied tenyaku no kami , which was depicted as the supreme leader within the i-do community in " shokugensho " (book on the history of japanese governmental posts written by chikafusa kitabatake ).
   これにより丹波氏の優位は決定的となり、「医道の極官」（『職源鈔』）とされた典薬頭は丹波氏の家職となったのである。