Source : Webster's Revised Unabridged Dictionary (1913)

Moralist \Mor"al*ist\, n. [Cf. F. moraliste.]
   1. One who moralizes; one who teaches or animadverts upon the
      duties of life; a writer of essays intended to correct
      vice and inculcate moral duties. --Addison.

   2. One who practices moral duties; a person who lives in
      conformity with moral rules; one of correct deportment and
      dealings with his fellow-creatures; -- sometimes used in
      contradistinction to one whose life is controlled by
      religious motives.

            The love (in the moralist of virtue, but in the
            Christian) of God himself.            --Hammond.

Source : WordNet®

moralist
     n 1: a philosopher who specializes in morals and moral problems
     2: someone who demands exact conformity to rules and forms
        [syn: {martinet}, {disciplinarian}]