phenolphthaleinWiktionary 原文构词拆分phenol词根/词干+phthalein词根/词干词源说明From phenol + phthalein.释义（英文）名词 Noun(organic chemistry, pharmacology) A white or yellowish-white crystalline compound C20H14O4 used in medicine as a laxative and in analysis as an indicator because its solution词族派生词（3）iodophthaleintetrabromophenolphthaleintetrachlorophenolphthalein相关词（1）phenolphthalin