Goosander \Goos"an`der\, n. [OE. gossander, a tautological word
formed fr. goose + gander. Cf. Merganser.] (Zo["o]l.)
A species of merganser ( M. merganser) of Northern Europe
and America; -- called also merganser, dundiver,
sawbill, sawneb, shelduck, and sheldrake. See
Merganser.