英和辞典 r 37 ratio [][(語源)ラテン語「計算」から](名) (複~s{~z}) (1)比率,割合(proportion);〔数学〕比,比例 in the ratio of 5 to 3 5対3の割合で in direct ratio to ‥ …に正[反]比例して The ratio between doctors and nurses was 1 to 4. [≒The ratio of doctors to nurses was 1 to 4.] 医者と看護師の割合は1対4だった. (2)〔金融〕(金銀)比価,比率 東京書籍「英和辞典」JLogosID : 701808500