The Collaborative International Dictionary of English v.0.48:
Moralism \Mor"al*ism\, n. A maxim or saying embodying a moral truth. --Farrar. [1913 Webster]WordNet (r) 3.0 (2006):
moralism n 1: a moral maxim 2: judgments about another person's morality; "he could not stand her hectoring moralism"