Bible Dictionaries
Styphnic

Webster's Dictionary

(a.) Pertaining to, or designating, a yellow crystalline astringent acid, (NO2)3.C6H.(OH)2, obtained by the action of nitric acid on resorcin. Styphnic acid resembles picric acid, but is not bitter. It acts like a strong dibasic acid, having a series of well defined salts.

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