Definify.com
Webster 1913 Edition
Terephthalic
Terˊeph-thal′ic
,Adj.
[
Tere
bene + phthalic
.] (Chem.)
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
.