critically endangered

American  

[krit-i-klee en-deyn-jerd] / ˈkrɪt ɪ kli ɛnˈdeɪn dʒərd /

adjective

Biology, Ecology.

1. (of athreatened species ) having the highest risk of extinction, as categorized by the IUCN Red List: CR

   The list of critically endangered frog species is alarmingly long.

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Etymology

Origin of critically endangered

First recorded in 1945–50

Example Sentences

As Scott Weidensaul tells us, poisoning has led to seven of Africa’s 10 vulture species being listed as endangered or critically endangered, with populations down as much as 97%.

From The Wall Street Journal • May 1, 2026

You’ll find everything from red pandas to critically endangered black-and-white ruffed lemurs.

From Salon • Mar. 31, 2026

In total, more than 2,000 marine species have been recorded in the warm Gulf waters, including over 500 fish species and five types of sea turtles, among them the critically endangered hawksbill sea turtle.

From Barron's • Mar. 17, 2026

When researchers compared the genomes of these ancient animals with modern breeds, they found the closest genetic match was the critically endangered Old Irish Goat still surviving today.

From Science Daily • Feb. 26, 2026

The population of critically endangered Darwin's frogs also rose by eight last year.

From BBC • Jan. 6, 2026