IUCN Red List

American  

[ahy-yoo-see-en red list] / ˈaɪˈyuˈsiˈɛn ˈrɛd ˌlɪst /

noun

1. an inventory of the conservation status of plant and animal species throughout the world, as directed and compiled by the International Union for Conservation of Nature: recognized as the world’s most comprehensive and authoritative assessment of species extinction risk.

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Etymology

Origin of IUCN Red List

First recorded in 1960–65

Example Sentences

Here’s the unfortunate answer: They’re just a few of the bird species newly listed as critically endangered in the latest update of the IUCN Red List of Threatened Species.

From Scientific American