altruistic
[ al-troo-is-tik ]
/ ˌæl truˈɪs tɪk /
adjective
unselfishly concerned for or devoted to the welfare of others (opposed to egoistic).
Animal Behavior.
of or relating to behavior by an animal that may be to its disadvantage but that benefits others of its kind, often its close relatives.
Origin of altruistic
First recorded in 1850–55;
altru(ism) +
-istic