| rock brake | |
| —n | |
| any of various ferns of the genera Pellaea and Cryptogramma, which grow on rocky ground and have sori at the ends of the veins | |
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| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
| a stew of meat, vegetables, potatoes, etc. |
| rock brake | |
noun | |
| 1. | any of several small lithophytic ferns of tropical and warm temperate regions [syn: cliff brake] |
| 2. | dwarf deciduous lithophytic ferns |
| 3. | chiefly lithophytic or epiphytic fern of North America and east Asia [syn: rock polypody] |