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

Because of the threat it poses, Rhodamnia zombi has now been placed on a list of species considered potentially critically endangered.

From Science Daily

All slow loris species are listed by the International Union for Conservation of Nature as Critically Endangered, Endangered, or Vulnerable.

From Science Daily

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

"This research is a huge milestone for the Old Irish Goat, and provides powerful scientific validation of what local communities and conservationists have long believed -- that the Old Irish Goat represents a living piece of our ancient heritage. It also underscores the urgency of protecting this critically endangered breed, which carries within it a living genetic record of Ireland's ancient past," said Sinead Keane, from The Old Irish Goat Society.

From Science Daily

Harvest mice weigh the same as a 20 pence coin and are considered to be critically endangered in Scotland by the Mammal Society.

From BBC