Pronunciation: (nil'gī), [key]
—pl. -gais, (esp. collectively) -gai.
a large, Indian antelope, Boselaphus tragocamelus, the male of which is bluish gray with small horns, the female tawny and hornless. Also,nylghai,nylghau.Also called blue bull.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.