For information about the ADA, including the revised 2010 ADA regulations, please visit the Department's website www.ADA.gov; or, for answers to specific questions, call the toll-free ADA Information Line at 800-514-0301 (Voice) or 800-514-0383 (TTY).
Definition of altruism. 1  1 : unselfish regard for or devotion to the welfare of others charitable acts motivated purely by altruism. 2  2 : behavior by an animal that is not beneficial to or may be harmful to itself but that benefits others of its species.
Noun. 1. altruism-the quality of unselfish concern for the welfare of others. selflessness.unselfishness-the quality of not putting yourself first but being willing to give your time or money or effort etc. for others; rural people show more devotion and unselfishness than do their urban cousins.. altruism-the quality of unselfish concern for the welfare of others. selflessness. unselfishness-the quality of not putting yourself first but being willing to give your time or money or effort etc. for others; rural people show more devotion and unselfishness than do their urban cousins.