perliteWiktionary 原文英美词源链法语Frenchperle‘pearl’↓ 派生英语Englishperlite词源说明From French perle (“pearl”) + -ite.释义名词noun1(mineralogy) An amorphous volcanic glass formed by the hydration of obsidian.2The lightweight insulating material and aggregate resulting from expanding perlite glass by heat.同族词派生词 1perlitic