a species at risk of extinction because of human activity, changes in climate, changes in predator-prey ratios, etc., especially when officially designated as such by a governmental agency such as the U.S. Fish and Wildlife Service.
A plant or animal species existing in such small numbers that it is in danger of becoming extinct, especially such a species placed in jeopardy as a result of human activity. One of the principal factors in the endangerment or extinction of a species is the destruction or pollution of its native habitat. Other factors include overhunting, intentional extermination, and the accidental or intentional introduction of alien species that outcompete the native species for environmental resources.
A group threatened with extinction or destruction. For example, Workers willing to put in overtime without extra pay are an endangered species, or With the new budget cuts, public television has become an endangered species. This expression, originally referring to species of plants or animals in danger of dying out, began in the 1980s to be extended to anything or anyone becoming rare.
[en-deyn-jeyr] /ɛnˈdeɪn dʒeɪr/ verb (used with object) 1. to expose to ; imperil: It was foolish to endanger your life in that way. /ɪnˈdeɪndʒə/ verb 1. (transitive) to put in danger or peril; imperil n. 1640s, from endanger + -ment. v. late 15c., from en- (1) “make, put in” + danger. Related: Endangered; endangering. Endangered […]
[en-dan-jee-ahy-tis] /ˌɛn dæn dʒiˈaɪ tɪs/ noun, Pathology. 1. an inflammation of the innermost lining of a blood vessel. endangiitis end·an·gi·i·tis or end·an·ge·i·tis (ěn’dān-jē-ī’tĭs) or en·do·an·gi·i·tis (ěn’dō-ān’jē-) n. An inflammation of the tunica intima of a blood vessel. Also called endovasculitis.
[en-dey-awr-tahy-tis] /ˌɛn deɪ ɔrˈtaɪ tɪs/ noun, Pathology. 1. an inflammation of the innermost lining of the . endaortitis end·a·or·ti·tis (ěn’dā-ôr-tī’tĭs) n. Inflammation of the intima of the aorta.
[en-dahrk] /ˈɛn dɑrk/ adjective, Botany. 1. (of a primary xylem or root) developing from the periphery; having the oldest cells closest to the core. /ˈɛndˌɑːk/ adjective 1. (botany) (of a xylem strand) having the first-formed xylem internal to that formed later Compare exarch1