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phthalic

[ thal-ik, fthal- ]
/ ˈθæl ɪk, ˈfθæl- /
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adjective Chemistry.
of or derived from phthalic acid.
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Origin of phthalic

First recorded in 1855–60; (na)phthal(ene) + -ic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

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