noun Etymology: International Scientific Vocabulary, short for obsolete na~, from naphthalene Date: 1857 any of three isomeric acids C 8 H 6 O 4 obtained by oxidation of various benzene derivatives
PHTHALIC ACID
Meaning of PHTHALIC ACID in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012