| 单词 | cinnamon fern |
| 释义 | cinnamon fern in American English a large, New World fern (Osmunda cinnamomea, family Osmundaceae) having sterile green fronds and other fronds that bear spores and turn a cinnamon color as the spores mature cinnamon fern in American Englishnoun a common coarse fern, Osmunda cinnamomea, having rusty-woolly stalks, growing in wet, low woods or thickets Word origin [1810–20]This word is first recorded in the period 1810–20. Other words that entered Englishat around the same time include: cleavage, dominance, duplex, keyboard, nihilism |
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