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.
behavior typical of that portrayed in a melodrama, i.e., characterized by extremes of emotion. mercuriality. 1. the state or quality of having a lively, fickle, volatile, or erratic attitude or charaeter. 2. an instance of such behavior. â mercurial, adj. milksopism. 1. the state or quality of being a weak and ineffectual person. 2. behavior or attitudes typical of a such a person. mimicism. an intense (and sometimes injurious) tendency to mimicry. mountebankism. boastful and pretentious behavior; quackery or any actions typical of a mountebank. Also mountebankery. muckerism. behavior characteristic of a boorish person.