Bible Dictionaries
Naphthalic

Webster's Dictionary

(1):

(a.) Formerly, designating an acid probably identical with phthalic acid.

(2):

(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.

Bibliography Information
Webster, Noah. Entry for 'Naphthalic'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​n/naphthalic.html. 1828.