Any of several North American ferns of rocky habitats, especially the cliff-brake Pellaea atropurpurea and the lace fern Aspidotis densa.
Late 19th century; earliest use found in The Century Dictionary.
英汉双解词典包含464360条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。