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 Englishnouna 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 |