n. A small compact diving duck, Mergus albellus, that breeds in the northern taiga of Europe and Asia and winters on sheltered coasts or inland lakes.
the GNU version of the Collaborative International Dictionary of English
n. small European merganser (Mergus albellus) which has a white crest; -- called also smee, smee duck, white merganser, and white nun.
n. The hooded merganser.
The Century Dictionary and Cyclopedia
n. A small merganser or fishing-duck, Mergellus albellus, the white nun, or smee, of the family Anatidæ and subfamily Merginæ, inhabiting northerly parts of the eastern hemisphere.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. smallest merganser and most expert diver; found in northern Eurasia
Word Usage
"My next stop, Cheddar reservoir, produced more ducks: a female smew and a pair of ruddy ducks among them."