[1] : The Collaborative International Dictionary of English v.0.48

ibex \i"bex\ imac"be^ks, n.; pl. e. ibexes
   imac"be^kse^z, l. ibices imacb"i^s=ez.
   l., a kind of goat, the chamois. zool.
   one of several species of wild goats having very large,
   recurved horns, transversely ridged in front; -- called also
   steinbok.
   1913 webster

   note: the alpine ibex capra ibex is the best known. the
         spanish, or pyrenean, ibex capra hispanica has
         smoother and more spreading horns.
         1913 webster
see also:
ibexes ibices steinbok capra ibex capra hispanica 

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