any of several typically crested large marine diving ducks of the genus Mergus, having a long slender hooked bill with serrated edges
Also called: sawbill. See also goosander
Word origin
C18: from New Latin, from Latin mergus waterfowl, from mergere to plunge + anser goose
merganser in American English
(mərˈgænsər)
nounWord forms: pluralmerˈgansers or merˈganser
any of several fish-eating, diving ducks with a long, slender, serrated bill hookedat the tip and, usually, a crested head, as the large common merganser (Mergus merganser) and the small hooded merganser (Lophodytes cucullatus)
Word origin
ModL < L mergus, diver (waterfowl) < mergere (see merge) + anser, goose