- any of several diving ducks of the genus Aythya, especially A. marila (greater scaup), of the Northern Hemisphere, having a bluish-gray bill.
Origin of scaup
1665–75; by ellipsis from scaup duck, probably with Scots, N dial. scaup, scalp mussel bed (of uncertain origin)
Also called scaup duck.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for scaup
Another of the sea-ducks, the scaup, is also taken in large numbers in this way.Poachers and Poaching
These ducks are perhaps better known as Blue-bills, than as Scaup Ducks.Bird Guide
Chester A. Reed
In flight, the dark wings are different from the white-edged wings of scaup.Ducks at a Distance
Robert W. Hines
The scaup came down the sky in dark masses, giving a rippling purr as they flew.Wild Folk
The food of the Scaup Duck consists largely of molluscs, but crustaceans and marine plants are also eaten by this species.British Sea Birds
- either of two diving ducks, Aythya marila (greater scaup) or A. affinis (lesser scaup), of Europe and America, having a black-and-white plumage in the maleAlso called (US): bluebill, broadbill
C16: Scot variant of scalp
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012