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The Collaborative International Dictionary
Naphthoic

Naphthoic \Naph*tho"ic\, a. (Chem.) Pertaining to, derived from, or related to, naphthalene; -- used to designate any one of a series of carboxyl derivatives, called naphthoic acids of the general formula C10H7.COOH, such as 1-naphthoic acid.

Wiktionary
naphthoic

a. Of or pertaining to naphthoic acid or its derivatives