Goulard's Extract (also known as subacetate of lead) is a solution of lead(II) acetate and lead oxide used as an astringent during the 18th, 19th and early 20th centuries. It was named after its introducer, Thomas Goulard.
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。