En·dan·ger v. t. [imp. & p. p. Endangered p. pr. & vb. n. Endangering.]
  1. To put to hazard; to bring into danger or peril; to expose to loss or injury; as, to endanger life or peace.
     All the other difficulties of his reign only exercised without endangering him.   --Burke.
  2. To incur the hazard of; to risk. [Obs.]
     He that turneth the humors back . . . endangereth malign ulcers.   --Bacon.
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  endangered
       adj : (of flora or fauna) in imminent danger of extinction; "an
             endangered species"