African antelope with ridged curved horns; moves with enormous leaps
"The herd of impalas bounded across the savanna, their ridged curved horns glinting in the sun as they leaped over a dry riverbed."
An African antelope, Aepyceros melampus, noted for its leaping ability; the male has ridged, curved horns.
"We spotted a herd of impalas grazing in the savanna before watching one leap high into the air to escape a predator."
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The word comes from the Zulu language, where it originally referred to the antelope itself.