exponent > define

noun

• A person who pleads for a cause or propounds an idea.
  • synonyms: advocate, advocator, proponent
• Someone who expounds and interprets or explains.
• A mathematical notation indicating the number of times a quantity is multiplied by itself.
  • synonyms: power, index

• (n.) One who or that which, stands as an index or representative; as, the leader of a party is the exponent of its principles.
• (n.) A number, letter or any quantity written on the right hand of and above another quantity, and denoting how many times the latter is repeated as a factor to produce the power indicated.