noun
- Any of several small lithophytic ferns of tropical and warm temperate regions.
- synonyms: cliff brake, cliff-brake
- Dwarf deciduous lithophytic ferns.
- Chiefly lithophytic or epiphytic fern of North America and east Asia.
- synonyms: rock polypody, American wall fern, Polypodium virgianum
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). rock brake. Retrieved September 21, 2026, from http://smartdefine.org/rock_brake/definitions/1242352 |
| Chicago | WordNet. 2010. "rock brake" http://smartdefine.org/rock_brake/definitions/1242352 (accessed September 21, 2026). |
| Harvard | WordNet 2010, rock brake, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/rock_brake/definitions/1242352>. |
| MLA | WordNet. "rock brake" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/rock_brake/definitions/1242352> |