perennial herb native to Europe but naturalized elsewhere having heart-shaped leaves and yellow flowers resembling buttercups; its tuberous roots have been used as a poultice to relieve piles
同义词：pilewort??/??Ranunculus ficaria
英汉双解词典包含3185865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。