Source : Webster's Revised Unabridged Dictionary (1913)

Saiga \Sai"ga\, n. [Russ. saika.] (Zo["o]l.)
   An antelope ({Saiga Tartarica}) native of the plains of
   Siberia and Eastern Russia. The male has erect annulated
   horns, and tufts of long hair beneath the eyes and ears.

Source : WordNet®

saiga
     n : goat-like antelope of central Eurasia having a stubby nose
         like a proboscis [syn: {Saiga tatarica}]