Both porous and plastic; (in early use) specifically designating (an object made of) a kind of felt used in making surgical casts, splints, etc.
Late 19th century; earliest use found in The Lancet. From poro- + plastic.
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。