Smew \Smew\, n. [Perhaps for ice-mew.] (Zool.)
(a) small European merganser ({Mergus albellus}) which has a
white crest; -- called also {smee}, {smee duck}, {white
merganser}, and {white nun}.
(b) The hooded merganser. [Local, U.S.]
[1913 Webster]