- rock brake
- noun1. chiefly lithophytic or epiphytic fern of North America and east Asia• Syn: ↑rock polypody, ↑American wall fern, ↑Polypodium virgianum• Hypernyms: ↑polypody2. any of several small lithophytic ferns of tropical and warm temperate regions• Syn: ↑cliff brake, ↑cliff-brake• Hypernyms: ↑fern• Hyponyms:↑coffee fern, ↑Pellaea andromedifolia, ↑purple rock brake, ↑Pellaea atropurpurea, ↑bird's-foot fern, ↑Pellaea mucronata, ↑Pellaea ornithopus• Member Holonyms: ↑Pellaea, ↑genus Pellaea3. dwarf deciduous lithophytic ferns• Hypernyms: ↑fern• Hyponyms: ↑American rock brake, ↑American parsley fern, ↑Cryptogramma acrostichoides, ↑European parsley fern, ↑mountain parsley fern, ↑Cryptogramma crispa• Member Holonyms: ↑Cryptogramma, ↑genus Cryptogramma
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noun: any of several ferns that grow chiefly on or among rocks: asa. : cliff brakeb. : a fern of the genus Cryptogammac. : polypody* * *
rock brake nounParsley fern• • •Main Entry: ↑rock* * *
rock brake,any one of a group of low ferns of cool areas of the Northern Hemisphere.
Useful english dictionary. 2012.