IUCN Red List

[ ahy-yoo-see-en red list ]

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.

Word History and Origins

Origin of IUCN Red List¹

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