endangered

adj. at risk, in danger; in danger of extinction (about an animal or plant)

v. put in danger, put at risk, imperil

An endangered species is a population of an organism which is at risk of becoming extinct because it is either few in number, or threatened by changing environmental or predation parameters. An endangered species is usually a taxonomic species, but may be another evolutionary significant unit. The World Conservation Union (IUCN) has calculated the percentage of endangered species as 40 percent of all organisms based on the sample of species that have been evaluated through 2006. (Note: the IUCN groups all threatened species for their summary purposes.) Many nations have laws offering protection to these species: for example, forbidding hunting, restricting land development or creating preserves. Only a few of the many species at risk of extinction actually make it to the lists and obtain legal protection. Many more species become extinct, or potentially will become extinct, without gaining public notice.
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Adjective
1. (of flora or fauna) in imminent danger of extinction; "an endangered species"
(similar) vulnerable
(classification) plant, flora, plant life

Verb
1. pose a threat to; present a danger to; "The pollution is endangering the crops"
(synonym) jeopardize, jeopardise, menace, threaten, imperil, peril
(hypernym) exist, be
2. put in a dangerous, disadvantageous, or difficult position
(synonym) queer, expose, scupper, peril
(hypernym) affect, impact, bear upon, bear on, touch on, touch
(hyponym) compromise

(imp. & p. p.)
of Endanger
  

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