n. [ G. stein stone + bock buck, D. bok. Cf. Steenbok. ] (Zool.) (a) The European ibex. (b) A small South African antelope (Nanotragus tragulus) which frequents dry, rocky districts; -- called also steenbok. [ Written also steinboc, and steinbok; also called stonebock, and stonebuck. ] [ 1913 Webster ]