noun Date: 1855 a crystalline cyclic acid anhydride C 8 H 4 O 3 used especially in making alkyd resins
PHTHALIC ANHYDRIDE
Meaning of PHTHALIC ANHYDRIDE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012