/ɪkˈspəʊnənt ||; ɪkˈsponənt/noun[C] 1 a person who supports an idea, a THEORY, etc and persuades others that it is good (主意、理论等的)鼓吹者,倡导者: She was a leading exponent of free trade during her political career. 在她的政治生涯中,她是自由贸易的主要鼓吹者。
2 a person who is able to perform a particular activity with skill (从事某项活动的)能手: the most famous exponent of the jazz harmonica 最著名的爵士乐口琴家
3 (in mathematics) a small number or symbol that shows how many times a quantity must be multiplied by itself (数学)指数