The Collaborative International Dictionary of English v.0.48:
Self-sacrifice \Self`-sac"ri*fice\, n. The act of sacrificing one's self, or one's interest, for others; self-devotion. [1913 Webster]WordNet (r) 3.0 (2006):
self-sacrifice n 1: acting with less concern for yourself than for the success of the joint activity [syn: selflessness, self- sacrifice]