Dictionary entry

Naphthalic

Webster's Dictionary 1913

Naph‐tha″lic (?), a.(Chem.) (a) Pertaining to, derived from, or related to, naphthalene; — used specifically to denote any one of a series of acids derived from naphthalene, and called naphthalene acids. (b) Formerly, designating an acid probably identical with phthalic acid.