[1] : The Collaborative International Dictionary of English v.0.48

impala \impa"la\, n.
   an antelope aepyceros melampus of southeastern africa,
   the male of which has ringed lyre-shaped horns, which curve
   first backward, then sideways, then upwards. also called
   impalla and pallah.
   pjc
see also:
aepyceros melampus impalla pallah 

[2] : WordNet (r) 2.0

impala
     n : african antelope with ridged curved horns; moves with
         enormous leaps syn: aepyceros melampus
see also:
aepyceros melampus 

Impala >> I Words
Impala, definition of term: Impala
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