altruism

/AE1 L T R UW0 IH0 Z AH0 M/
noun
  1. 1

    Regard for others, both natural and moral without regard for oneself; devotion to the interests of others; brotherly kindness.

  2. 2

    (sociobiology) Action or behaviour that benefits another or others at some cost to the performer.

Source: https://en.wiktionary.org/wiki/altruism