'Self-sacrifice' definitions:

Definition of 'self-sacrifice'

From: WordNet
noun
Acting with less concern for yourself than for the success of the joint activity [syn: selflessness, self- sacrifice]

Definition of 'Self-sacrifice'

From: GCIDE
  • Self-sacrifice \Self`-sac"ri*fice\, n. The act of sacrificing one's self, or one's interest, for others; self-devotion. [1913 Webster]