Source : Webster's Revised Unabridged Dictionary (1913)

Gazelle \Ga*zelle"\, n. [F. gazelle, OF. also, gazel; cf. Sp.
   gacela, Pr. gazella, It. gazella; all fr. Ar. ghaz?l a wild
   goat.] (Zo["o]l.)
   One of several small, swift, elegantly formed species of
   antelope, of the genus {Gazella}, esp. {G. dorcas}; -- called
   also {algazel}, {corinne}, {korin}, and {kevel}. The gazelles
   are celebrated for the luster and soft expression of their
   eyes. [Written also {gazel}.]

Source : WordNet®

gazelle
     n : small swift graceful antelope of Africa and Asia having
         lustrous eyes