What does the word exponent mean?

Usage examples for exponent

  1. But they all united in the ultimate essential, and this was put by a great exponent of the best known school of etiquette, the Ogasawara, in the following terms: " The end of all etiquette is to so cultivate your mind that even when you are quietly seated, not the roughest ruffian can dare make onset on your person." – Bushido, the Soul of Japan by Inazo Nitobé
  2. Beauty itself is but one of the forms of truth, and nature is our finite exponent of infinite truth. – Peg Woffington by Charles Reade