Source : Webster's Revised Unabridged Dictionary (1913)

Nyula \Ny*u"la\, n. (Zo["o]l.)
   A species of ichneumon ({Herpestes nyula}). Its fur is
   beautifully variegated by closely set zigzag markings.

Source : WordNet®

Herpestes nyula
     n : keen-sighted viverrine of southern Asia about the size of a
         ferret; often domesticated [syn: {Indian mongoose}]