a. Of, pertaining to, or designating, a dibasic acid of
the aromatic series, metameric with phthalic acid, and obtained, as a
tasteless white crystalline powder, by the oxidation of oil of
turpentine; -- called also paraphthalic acid. Cf. Phthalic.
(=terephthalic acid)[化]对苯二酸, 对酞酸