Meaning of EXPONENTIAL in English

[ex.po.nen.tial] adj (1704) 1: of or relating to an exponent

2: involving a variable in an exponent

3: expressible or approximately expressible by an exponential function; esp: characterized by or being an extremely rapid increase (as in size or extent) "an ~ growth rate" -- ex.po.nen.tial.ly adv

Merriam-Webster English vocab.      Английский словарь Merriam Webster.