Source : Webster's Revised Unabridged Dictionary (1913)

Leucoryx \Leu"co*ryx\ (l[=u]"k[-o]*r[i^]ks), n. [NL., from Gr.
   leyko`s + 'o`ryx a kind of gazelle.] (Zo["o]l.)
   A large antelope of North Africa ({Oryx leucoryx}), allied to
   the gemsbok.