Dictionary

phthalic acid

noun phthal·ic acid \ˈtha-lik-\

Definition of PHTHALIC ACID

:  any of three isomeric acids C8H6O4 obtained by oxidation of various benzene derivatives

Origin of PHTHALIC ACID

International Scientific Vocabulary, short for obsolete naphthalic acid, from naphthalene
First Known Use: 1857

phthalic acid

noun phthal·ic acid \ˌthal-ik-\   (Medical Dictionary)

Medical Definition of PHTHALIC ACID

:  any of three isomeric acids C8H6O4 obtained by oxidation of various benzene derivatives

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