/rez'euh nerr"/ ; Fr. /rdde zaw nuerdd"/ , n. , pl. raisonneurs /-nerrz"/ ; Fr. /-nuerdd"/ .
a character in a play, novel, or the like who voices the central theme, philosophy, or point of view of the work.
[ 1900-05; raisonn ( er ) to REASON, argue + -eur -EUR ]