International Union for Conservation of Nature

[ in-ter-nash-uh-nl yoon-yuhn fer kon-ser-vey-shuhn uhv ney-cher ]
/ ˌɪn tərˈnæʃ ə nl ˈyun yən fər ˌkɒn sərˈveɪ ʃən əv ˈneɪ tʃər /

noun

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. Abbreviation: IUCN

Origin of International Union for Conservation of Nature

First recorded in 1945–50