| 单词 | eider |
| 释义 | eider /uy"deuhr/, n. 1. See eider duck. 2. eiderdown. [1735-45; < Icel aethar (in 18th century spelled aedar), gen. sing. of aethur eider duck, in phrase aedar dunn down of the eider duck; sp. eider < G or Sw] |
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