| 单词 | wall fern |
| 释义 | wall fern in American English a small, hardy fern (Polypodium virginianum) of the most common family (Polypodiaceae) of ferns, with densely matted, creeping stems, found on cliffs and walls in E North America and often grown in gardens wall fern in American Englishnoun the polypody, esp Polypodium vulgare or P. virginianum Word origin [1515–25]This word is first recorded in the period 1515–25. Other words that entered Englishat around the same time include: accelerate, badger, engage, pioneer, splice |
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