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Từ điển Oxford Learners Wordfinder Dictionary
rock brake
1. chiefly lithophytic or epiphytic fern of North America and east Asia
• Syn:
rock polypody, American wall fern, Polypodium virgianum
• Hypernyms:
polypody
2. 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 Pellaea
3. 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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