| 单词 | floating fern |
| 释义 | floating fern (extremely rare) n WORD FAMILY floating fern USAGE EXAMPLESIt enables a floating fern to maintain an air layer, even when submerged. Science Magazine(Mar 13, 2014) 1n pantropical aquatic fern Syn|Hyper Ceratopteris thalictroides aquatic fern, water fern ferns that grow in water 2n aquatic fern of tropical America often used in aquariums Syn|Hyper Ceratopteris pteridioides, water sprite aquatic fern, water fern ferns that grow in water 3n small free-floating aquatic fern from the eastern United States to tropical America; naturalized in western and southern Europe Syn|Hyper Azolla caroliniana, Carolina pond fern, mosquito fern aquatic fern, water fern ferns that grow in water |
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