Definition of naphthalic acid
1 : a crystalline acid C10H6(COOH)2 formed by oxidation of acenaphthene; 1,8-naphthalene-dicarboxylic acid
2 obsolete : phthalic acid
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Origin and Etymology of naphthalic acid
International Scientific Vocabulary naphthaline + -ic + acid; probably originally formed as French acide naphtalique
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