noun which may take the genitive case particle 'no', noun
endangered; threatened (species)
Used in environmental and biological contexts to describe species at risk of extinction. Often appears in the compound 絶滅危惧種 (endangered species).
この鳥は絶滅危惧種に指定されている。
This bird has been designated as an endangered species.
絶滅危惧の動物を守るための活動が行われている。
Activities are being carried out to protect endangered animals.
Compound of 絶滅 (extinction) and 危惧 (apprehension, fear), literally 'fear of extinction'. The term is a modern coinage used primarily in conservation biology.