noun Date: 1836 a function (as y = log a x or y = ln x ) that is the inverse of an exponential function (as y = a x or y = e x ) so that the independent variable appears in a logarithm
LOGARITHMIC FUNCTION
Meaning of LOGARITHMIC FUNCTION in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012