| 单词 | tooth-fern | 
| 释义 | > as lemmastooth-fern   tooth-fern  n. a rendering of Odontopteris, a genus of fossil ferns. ΚΠ 1867    W. W. Smyth Treat. Coal & Coal-mining 37  				The Odontopteris, or tooth-fern. < as lemmas | 
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