Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun rock_brake

3 senses of rock brake

Sense 1
cliff brake, cliff-brake, rock brake -- (any of several small lithophytic ferns of tropical and warm temperate regions)
       => fern -- (any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by spores)

Sense 2
rock brake -- (dwarf deciduous lithophytic ferns)
       => fern -- (any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by spores)

Sense 3
rock polypody, rock brake, American wall fern, Polypodium virgianum -- (chiefly lithophytic or epiphytic fern of North America and east Asia)
       => polypody -- (any of numerous ferns of the genus Polypodium)