noun
: any of several ducks related to the mergansers and constituting the genus Merganetta that inhabit rushing streams of the Andes from Colombia to Chile
noun
: any of several ducks related to the mergansers and constituting the genus Merganetta that inhabit rushing streams of the Andes from Colombia to Chile
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012