Meaning of RATIO in English

RATIO

(~s)

A ~ is a relationship between two things when it is expressed in numbers or amounts. For example, if there are ten boys and thirty girls in a room, the ~ of boys to girls is 1:3, or one to three.

The adult to child ~ is 1 to 6.

N-COUNT: usu sing, oft N of n to n

Collins COBUILD.      Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) .