As nouns the difference between hider and eider
is that hider is one who hides oneself or a thing while eider is any of the species of the genera Polysticta or Somateria, in the seaduck subfamily Merginae, which line their nests with fine down (taken from their own bodies).
As a proper noun Eider is
a river in Germany, the boundary between Schleswig and Holstein.
hider
English
Noun
(
en noun)
One who hides oneself or a thing.
eider
Noun
(
en noun)
Any of the species of the genera Polysticta'' or ''Somateria , in the seaduck subfamily Merginae, which line their nests with fine down (taken from their own bodies).
Derived terms
* eiderdown
* common eider, Somateria mollissima
* king eider, Somateria spectabilis
* spectacled eider, Somateria fischeri
* Steller's eider, Polysticta stelleri