n.; pl. E. Ibexes L. Ibices [ 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 ]
☞ The Alpine ibex (Capra ibex) is the best known. The Spanish, or Pyrenean, ibex (Capra Hispanica) has smoother and more spreading horns. [ 1913 Webster ]