Source : Webster's Revised Unabridged Dictionary (1913)

Aoudad \A"ou*dad\, n. [The Moorish name.] (Zo["o]l.)
   An African sheeplike quadruped (the {Ammotragus tragelaphus})
   having a long mane on the breast and fore legs. It is,
   perhaps, the chamois of the Old Testament.