unicef

noun

1. United Nations Children’s Fund: an agency, created by the United Nations General Assembly in 1946, concerned with improving the health and nutrition of children and mothers throughout the world; Nobel Peace Prize 1965.

n acronym for

1. United Nations Children’s Fund (formerly, United Nations International Children’s Emergency Fund): an agency of the United Nations that administers programmes to aid education and child and maternal health in developing countries

by 1948, acronym from United Nations International Children’s Emergency Fund, which was created in 1946 (the name was changed 1953 to United Nations Children’s Fund but the acronym endured).