Definition of terephthalic acid
: a p-dicarboxylic acid C8H6O4 that is obtained especially by oxidation of xylene and is used chiefly in the synthesis of polyesters
Origin of terephthalic acid
International Scientific Vocabulary terebene, mixture of terpenes from distilled turpentine + phthalic acid
First Known Use: 1857
Learn More about terephthalic acid
Britannica.com: Encyclopedia article about "terephthalic acid"
Seen and Heard
What made you want to look up terephthalic acid? Please tell us where you read or heard it (including the quote, if possible).