\Te*guex"in\, n. (Zo["o]l.)
A large South American lizard ({Tejus teguexin}). It becomes
three or four feet long, and is blackish above, marked with
yellowish spots of various sizes. It feeds upon fruits,
insects, reptiles, young birds, and birds' eggs. The closely
allied species {Tejus rufescens} is called {red teguexin}.