phthalin |
تھیلن ۔ قلمی مرکبات کے گروہوں میں سے ایک گروہ ۔ بے رنگ ۔ |
(1) - Phthalin (n.) A colorless crystalline substance obtained by reduction from phthalein, into which it is easily converted by oxidation; hence, any one of the series of which phthalin proper is the type. |