Eider, river, Germany

Eider (ī`dər), river, 117 mi (188 km) long, rising S of Kiel, N Germany, and flowing N to the Kiel Canal before turning west and meandering to the North Sea at Tönning. It is navigable for most of its length. The Eider's lower course is regulated by locks; part of its upper course is followed by the Kiel Canal. The river separates Schleswig from Holstein.

eider, in zoology

eider: see duck duck, common name for wild and domestic waterfowl of the family Anatidae, which also includes geese and swans. It is hunted and bred for its meat, eggs, and feathers. Strictly speaking, duck refers to the female and drake to the male.
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eider

Any of several species of large diving ducks (in tribes Mergini and Somateriini) that are heavy and round-bodied, with a humped bill that produces a characteristic sloping profile. Eiders are the source of eiderdown, feathers that the hen plucks from her breast to line the nest and insulate her eggs. Eiderdown is used as a warm filling for jackets, pillows, quilts, and sleeping bags. Hens are mottled brown, but drakes (males) are boldly patterned, with a green pigment on the head. Eiders live in the cold far north.

eider, eider duck

any of several sea ducks of the genus Somateria, esp S. mollissima, and related genera, which occur in the N hemisphere. The male has black and white plumage, and the female is the source of eiderdown

eider (redirected from Somateria)

Eider, river, Germany

eider, in zoology

eider

eider
(redirected from Somateria)