Meaning of SLIDING SCALE in English

SLIDING SCALE

noun Date: 1842 a wage scale geared to the selling price of the product or to the consumer price index but usually guaranteeing a minimum below which the wage will not fall, 2. a system for raising or lowering tariffs in accord with price changes, a flexible scale (as of fees or subsidies) adjusted to the needs or income of individuals

Merriam Webster. Explanatory English dictionary Merriam Webster.      Толковый словарь английского языка Мерриам-Уэбстер.