Gazelle n. : 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.

Example:
What adaptations will a Gazelle have to make for the future?

Taxonomy
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Defination from the web:
Gazelle.com.