What is the meaning of purple rock brake?

noun

  • Very short shallowly creeping North American fern usually growing on cliffs or walls and having dark glossy leaf axes.
WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). purple rock brake. Retrieved September 25, 2026, from http://smartdefine.org/purple_rock_brake/definitions/1242362
ChicagoWordNet. 2010. "purple rock brake" http://smartdefine.org/purple_rock_brake/definitions/1242362 (accessed September 25, 2026).
HarvardWordNet 2010, purple rock brake, Smart Define, viewed 25 September, 2026, <http://smartdefine.org/purple_rock_brake/definitions/1242362>.
MLAWordNet. "purple rock brake" 23 October 2010. Web. 25 September 2026. <http://smartdefine.org/purple_rock_brake/definitions/1242362>