Main Entry: ex·po·nent

Pronunciation: \ik-ˈspō-nənt, ˈek-ˌ\

Function: noun

Etymology: Latin exponent-, exponens, present participle of exponere — more at expose

Date: 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