International Union for Conservation of Nature

[ in-ter-nash-uh-nl yoon-yuhn fer kon-ser-vey-shuhn uhv ney-cher ]

noun

1. an international organization dedicated to research and analysis in the field of nature conservation: known as the world’s leading authority on the conservation status of plant and animal species and for its compilation of the IUCN Red List ( def ). : IUCN

Word History and Origins

Origin of International Union for Conservation of Nature¹

First recorded in 1945–50