rhebok

from The Collaborative International Dictionary of English v.0.48
Peele \Pee"le\ (p[=e]"l[-e]), n. (Zool.)
   A graceful and swift South African antelope ({Pelea
   capreola}). The hair is woolly, and ash-gray on the back and
   sides. The horns are black, long, slender, straight, nearly
   smooth, and very sharp. Called also {rheeboc}, {rhebuck},
   {rhebok}, and {rehboc}.
   [1913 Webster]
    

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