Meaning of EXPONENT in English

[ex.po.nent] n [L exponent-, exponens, prp. of exponere] (1706) 1: a symbol written above and to the right of a mathematical expression to indicate the operation of raising to a power

2. a: one that expounds or interprets b: one that champions, practices, or exemplifies

Merriam-Webster English vocab.      Английский словарь Merriam Webster.